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The DeRoyal LMB Light Extension Finger Spring provides gentle extension of the PIP or DIP joints; For Crush injuries; Boutonniere deformity; Burns.
Features and Benefits:
- High quality Wire-Foam™ construction for a customized fit.
- Produces extensions of the PIP or DIP joints.
- Capable of fully extending supple joint.
- May be worn on adjacent fingers.
- Tension adjustable by careful bending.
- Lighter tension than models #501, #502, #507 and #508.
- Force: Full flexion ≈ 1.75 lbs.; Full extension ≈ 1.0 lbs.
- See sizing chart for measurement/fit help.
Size | Measurement | Product # |
X-Small | 1¼” | 602AA |
Small | 1½” | 602A |
Medium | 1¾” | 602B |
Large | 2¼” | 602C |
X-Large | 2¾” | 602D |
The DeRoyal LMB Light Extension Finger Spring may be used to treat:
- Crush injuries.
- Boutonniere deformity.
- Burns.
Customers reviews and questions


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Helps my finger straighten out
My occupational therapist recommended that I use this to help straighten out my finger. It was very difficult to find online and I'm happy that you have the item. I called DeRoyal and they referred me to you to purchase it - said it would be authentic.
Helping my finger straighten out
My occupational hand therapist recommended I get this from DME-Direct. I have been using mine now for a week and I can see the difference already as my finger is finally straightening out.
I needed a lighter spring finger splint
I needed a lighter tension spring than the 508 I had been using and this style worked out fine. It's a little more comfortable for me to wear all night.
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DME-Direct is a DeRoyal Authorized Dealer Site
DeRoyal believes that the best way for you to select and purchase a DeRoyal product is at one of its authorized online stores of which DME-Direct is one. Only in these stores can you be sure to find the latest DeRoyal collection and ensure you are getting a genuine DeRoyal product with the manufacturer's full warranty.
DeRoyal therefore recommends that you do not purchase a DeRoyal item through any website, unless it is an authorized DeRoyal dealer.
We are a DeRoyal Authorized Dealer and can assure you a safe and pleasant shopping experience here at our website as if you were at our wholesale distribution premises in Valencia, California.
Some non-authorized sites sell counterfeit, second-hand merchandise, and/or products containing old fabrics, glues, and resins that do not perform as intended, and are therefore, not eligible for care under the DeRoyal warranty. Others do not offer the original DeRoyal warranty, nor do they offer any after-sales service of any kind.
DeRoyal takes great care to ensure that all DeRoyal authorized dealers offer you the very best products and service. Please take advantage of the peace of mind that only they can offer to DeRoyal purchasers.