Check the listing for details. DeRoyal LMB Spring Finger Extension Assist. Condition: New. Listed at 28.99 USD. DeRoyal LMB Spring Finger Extension Assist DeRoyal DeRoyal High quality Wire-Foam¬™ construction for a customized fit Versatile model extends PIP joint with a slight extension effect on MP joint Designed for patient comfort with an emphasis on distal pad curvature Tension is adjustable by careful bending Force: 15° flexion ≈ approx. 8 oz.; 90° flexion ≈ approx. 4 lbs. High quality Wire-Foam™ construction for a customized fit. Versatile model extends PIP joint with a slight extension effect on MP joint. Designed for patient comfort with an emphasis on distal pad curvature. Tension is adjustable by careful bending. Features: High quality Wire-Foam™ construction for a customized fit Versatile model extends PIP joint with a slight extension effect on MP joint Quantity: 1 Size: X-Small, Small, Medium, Large, or X-Large Color: White Material: Wire foam Force: 15° flexion ≈ approx. 8 oz.; 90° flexion ≈ approx. 4 lbs. Manufacturer: DeRoyal Indications: Finger flexion tightness; Boutonniere deformity (allows IP flexion) Cleaning & Care: Slight damp cloth with mild soap. Options: X-Small (501AA) UPC: 0749756126908 Small (501A) UPC: 0749756126892 Medium (501B) UPC: 0749756126922 Large (501C) UPC: 0749756126946 X-Large (501D) UPC: 0749756126953 Sizing Guide: X-Small:2¼" Small: 2" Medium: 3" Large: 3½" X-Large: 4"