about that product: 1.Wide range of uses: finger stiffness,arthritis,finger pain,mallet Smooth fingers,repair rupture of extensor tendon as And little knuckle fractures,sprains and dislocations. 2.Material: Mainly made of PE material,compact structure, Lightweight,you can adjust the tightness according to your needs,this The finger rest plays a good role in protecting the fingers Sports items. 3.Breathable: Perforated design keeps dry and breathable, Avoid heat,moisture,good applicability, aesthetics. 4.Lightweight design allows normal finger movement And slight flexion of the thumb for standard tasks such as typing, Drive and cook. 5.Easy to put on and take off,including six different types Finger splint.A great gift for all kinds of sports,such as Such as tennis,badminton,basketball,volleyball,football,etc. Specification: Material: PE Size 0: Fits fingers from 3.8 to 4.2 cm in length. Size 1: Fits 4.2-4.8 cm long fingers. Size 2: Fits fingers between 4.8 cm and 5.3 cm in length. Size 3: Suitable for fingers with a length of 5.3-5.5 cm. Size 4: Fits 5.5-6 cm long fingers. Size 5: Suitable for finger length 6-6.5 cm. The package includes: 1 PC OF Finger Protector