Loogu Pack of 4 Pairs Anti UV Sun Protection Arm Sleeve Cover for Outdoor Activities Camping, Hiking, Cycling & Golfing Length: 50cm Upper End Width: 12 cm Wrist End Width: 9cm Both ends features elastic band for anti-slip and adjustment to your size This Cooling Sleeves are Made of Stretchy & Soft Comfortable Material Protect your arms from over exposure of the sun's harmful rays! Protects against: UV-R, UV-A, UV-B Great for Cycling, Camping, Hiking, Golfing, Fishing, Hunting etc.