Product description Size: Arm strap: 40*7.5cm Wrist strap: 30*7.5cm Mobile phone holder: 12.6cm Buckle: 8.4*5cm Color: black, green, pink Material: Silicone+ABS+Nylon+Textile Package content: 1pcs mobile phone holder 2pcs straps 1pcs buckle 1. 360 ROTATION FOR OPTIMAL VIEWING ANGLE Innovative 360 rotation sets it apart from similar cell phone armband jogging on the market. Now you can easily switch music or check messages without stopping while running on the treadmill or lifting weights 2.FOR ALL TELEPHONE SIZES The superior elastic silicone strap fits all smartphones even with a case. 3.COMFORTABLE FIT: The highly adjustable and breathable mobile phone sports armband offers a comfortable fit and is still pleasant to wear. Double Velcro fasteners ensure that the bracelet can be adapted to different arm sizes. With the detachable arm strap, you can easily remove the strap and then wash it with water 4.PERFECT HAND-FREE SOLUTION Whether you like to stay inside or prefer to be outside, you can use this phone case for jogging, biking, hiking, climbing, walking, fishing or doing household chores like cooking, mowing or cleaning 5.Skin friendly and fit for most wrists: Breathable high quality materials provide soft, odor-free and lightweight wearing experience. Highly elastic velcro fits most of wrists to enjoy a comfortable fit