Elf Straps

Elf Straps

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Elbow FLexion Cross Bar and Cable Control Strap: The ELF Cross Bar and Cable Control Strap eliminates forever your need to fabricate cross bar straps. These straps were developed with over a year of rigorous field testing. The ELF Strap is designed to enhance cable excursion control by providing a platform and cable housing, “tunnel” guide to maximize cable excursion around the elbow. Now elbow flexion can be added to the arsenal of gleno-humeral flexion and bi-lateral scapular abduction to help generate the cable forces needed to operate body powered prosthetic devices like GRIP Prehensors and V/O Split Hooks. The ELF Straps are extra long and easy to modify for length and mounting (drilling, riveting, etc.).


  • • Unbreakable polyurethane material retains flexibility and strength for better cable performance and efficiency.
  • • Cable tunnel guide enhances cable excursion around the elbow dramatically improving performance and increasing operational efficiency.
  • • Capable of being used with both Heavy Duty and Standard size cable housing. Special tubing is enclosed as an accessory that is used to increase the O.D. of Standard Size Cross bars so that they fit the ELF system.
  • • Unbreakable and waterproof. ELF STRAPS survived over ONE MILLION cycles of “ninety degree flexion/extension testing.
  • • Extra long to fit prosthesis with lower trim lines.
  • • Easily modified for length and mounting. Material cuts, drills and finishes professionally.
  • • Accessory kit includes mounting hardware and complete Installation Instructions.



Length: 6.5 in. (16.5 cm)
Width: .75 in. (1.9 cm)
Max. Width: .96 in. (2.4cm)
Thickness: .125 in. (.32 cm)
Max. Thickness (@ Cross Bar): .50 in. (1.3 cm)
Colors: TRS Tan & TRS Stealth Black
Weight: Under .5 oz. (14gm)


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Purchase Options

All TRS products, including videos, parts and accessories are available from professional, certified prosthetic facilities. Additionally certain medical clinics and rehabilitation hospitals have prosthetic departments through which TRS technology is available.

*All orders will be processed in the order they are received. Most in stock orders will ship within 1-3 days of the order date. If you have any questions, please feel free to contact customer support. We appreciate your business and are doing our best to ship all orders on time.

Persons interested in comprehensive prosthetic service and care should always utilize the services of a certified prosthetist. Prosthetic facilities handle the coordination of your personal health insurance coverage, conduct billing for services and facilitate “Clinical Trials and Field Evaluations” of TRS products. Importantly these facilities and professionals ensure that your prosthetic technology and hardware is totally compatible, properly installed and aligned for optimal operation. TRS can help with referrals to certified prosthetic facilities that are familiar with TRS technology, in your area.

*A restock fee of 10% will be issued on all returns unless a substitute product is purchased. A 25% restock fee will be issued on all Grip 5 and Ener-Joint returns.

Hours of operation:
Monday-Thursday 7:30am-4:00pm MST
Friday 7:30am-12:00pm MST

Closed Holidays: New Year’s Day, Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and the day after, Christmas Day.

General: (800) 279-1865

Direct Sales Program

TRS offers direct limited retail sales to consumers on specialized products (Listed below). Sports and recreational products and accessories and specific replacement parts are available directly from TRS. TRS does not bill insurance companies and all sales under this program are final. Products sold under this TRS Direct program cannot be returned. TRS accepts MasterCard and VISA payments.

Below are a list of products available directly from TRS:

Barrage Cobra(s) Ski TD’s Dragon Helix Hoopster
ISHI Jump Rope Lamprey Mountain Master Multi D Power Play
Raptor Swinger Golf Eagle TD Golf Pro Grand Slam Hi Fly Fielder
Pinch Hitter Freestyle Swim Amp-U-Pod Hustler Guitar Violin
Drum Slap Shot Black Iron Lite Black Iron Master Black Iron Trainer Rebound
Criterium Shroom Tumbler Bike Brake Kahuna Surf Swim T.D. Hammerhead
Replacement GRIP 3 GRIP Device Rebuild



TRS products are available in Canada through a distribution arrangement with Myrdal Orthopedic Technologies (MOT) of Winnipeg, Manitoba. MOT serves prosthetic and orthotic facilities throughout Canada and stocks a broad variety of TRS products. MOT coordinates the “Customs Clearance” required on prosthetic goods imported into Canada.

MOT Toll Free In Canada 877.395.0081


TRS also can sell to consumers who prefer a direct relationship and have the financial means to purchase via M/C or VISA. Customs clearances, Customs fees and VAT are the responsibility of the purchasing customer.


Fillauer Europe distributes TRS products throughout Scandinavia, the UK and many European countries. Fillauer Europe network and contacts in Europe are:

UK Ortho Europe & Steeper
Holland & Belgium Loth Fabenim, Nettie van Velzen [email protected]
France OKO Solutions SAS, Alexandre Okorokoff, [email protected]
Germany Ortho Neuhof
Spain & Portugal EMO, Leopoldo, [email protected]
Switzerland FREY
Italy Simona Rosa, [email protected]
Austria Ortho Neuhof
Denmark, Sweden Fillauer Europe
Norway, Finland Fillauer Europe


TRS is seeking stocking distributors in countries not currently served by our current distributors. Contact Bob Radocy directly at [email protected] to open up a dialogue about what may be possible.

TRS offers a generous, one time, discount program for new distributors enabling the purchase of a complete line of production quality samples.


TRS can sell product directly to consumers outside the USA, via M/C or VISA. Customs clearances, customs tariffs, etc. are the responsibility of the purchasing customer. Make inquiries to:


TRS – Therapeutic Recreational Services
3090 Sterling Circle, Studio A,
Boulder, CO 80301

Phone 303.444.4720
Fax 303.444.5372

Bob Radocy, President
[email protected]

Linda Martin
[email protected]

Client Testimonials

TRS shipping is closed on the last two business days in June and December for inventory purposes. All orders received on those days will be processed after inventory is complete on the first business day in July and January.