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DeRoyal® LMB Dynamic Wire-Foam™ Light Spring Extension Finger Spring (Model 602) assists extension of the PIP or DIP joints. Use on a supple joint that cannot extend without assistance. Adjustable dynamic tension. May be worn on adjacent fingers. Wire-Foam™ for a customized fit.
Force at full flexion is 1-3/4 lbs., at full extension, 1 lb.
Sizing: Measure the volar surface distance from MP crease to distal finger crease.
X-Small (AA) fits 1-1/4"
Small (A) fits 1-1/2"
Medium (B) fits 1-3/4"
Large (C) fits 2-1/4"
X-Large (D) fits 2-3/4"