Premium Waterproof Material: JOHEXI smart watch bands is made of soft silicone material. It is sweat and water resistant, easy to dry, lightweight, skin-friendly, soft and durable for your daily use. | Unique Design: The air holes on the watch band make it more breathable and comfortable, and it is available in various colors and sizes for kids. This watch strap is specially designed for gym, picnic, swimming, climbing, hiking, camping, traveling. | Fit Wrist Size: Easy to adjust the length of watch band to fit your kids wrist. This silicone watch band fits 6.25"-8.03"kids wrists and compatible with Gizmo Watch 2 & Gizmo Watch 1. | Easy to Install: JOHEXI silicone watch bands adopt quick release spring bars on both sides. It allows you easy to change watch bands for your kids without tool and make you look like an omnipotent person in your child’s mind. | What You Get: 1 x Gizmo Replacement Watch Band (No Watch included). If you have any problems, please feel free to contact with me. I am very happy to help you.