Product description Size: wrist strap 14-26cm : green, black, pink Material: Silicone Package content: 1pcs sports wristband 1.Safe Protection and -absorbing: Different from plastic mount, this flexible silicone can absorb some vibration. Additional, the soft silicone holder wont cause any damage to your valuable cellphone. 2.Ultra-light - Ultra light silicone material, hardly adds any weight to the bars. Makes driving easier and safer 3.Wide Compatibility: elastic silicone bands can firmly hold all smart phones with screen size from 4.0" to 6.5". 4.360 Degrees RotationThe angle of the mobile phone can be adjusted at will according to the needs of running. The design of our running arm strap will not block any buttons, so that you can easily operate 5. Suitable for most wrists: soft strap, suitable for most large and strong wrists. You don't need to worry about the fit, because the fitness band has two belt grooves and an adjustable fixture.