STURDY ALUMINUM SUPPORT: The upgraded aluminum support brace stabilizes your knuckles and keeps your jammed fingers straight. COMFORTABLE MATERIAL: Made of the highest grade neoprene over stretch nylon and cotton, not only makes your fingers more comfortable but also uses strong velcro to maintain performance, it can also be hand or machine washed. FINGER PAIN RELIEF: Supports your sore fingers, relieves pain and quickly reduces swelling in your fingers or joints. Suitable for trigger, mallet finger arthritis, tendonitis or finger lock pain relief. ADJUSTABLE TIGHTNESS: Made with Velcro closure straps, custom pressure is available. Works on most mallet, trigger or arthritic fingers, locking, popping and swollen fingers. Easy to use. The edges of the fabric are flat stitched and rounded to protect your fingers from pinching.