Triple Eight Skateboard Wrist Guards are protective gear for wrist support and protection and can be used in conjunction with the Triple Eight helmet. Suitable for skateboarding, roller skating, snowboarding, protecting your wrist from hard falls. High density shock resistant, replaceable ABS sprints on front and back for support and shock absorbing EVA foam for extra cushioning. The wrist saver uses durable 4-way stretch nylon mesh, so it can be securely attached. Two Wrist Saver I: Strap Closure" with 3 Velcro closures on a butterfly strap and Wrist Saver II Slide-On Sleeve with Nylon Mesh Sleeve. The sliding sleeve uses nylon mesh and a single hook and loop closure for easy on and off. J: 15.5cm-18cm, S:18cm-20.5cm, M:20.5cm-23cm, L:23cm-25.5cm Measure the circumference of your palm to choose the right size. Sold as a pair. 180 days manufacturers warranty.