High material elasticity OK, traction, better protection of fingers and wrist. Strap interior and exterior design, double fixation, more stable. Two built-in springs, bilateral support. Elastic straps on the part of the thumb; put pressure on the thumb to protect the thumb. Specifications: Material: composite material OK, spring, Strap STYLE: 1 (black, right hand), 2 (black, left hand), 3 (black and orange, right hand), 4 (black and orange, left hand) Product size: 390x130x5mm / 15.4x5.12x0.20 " Weight: 50g Application: Exercise and Fitness, correct fingers .