Compatible with Noise ColorFit Pulse Noise ColorFit Pro 2 Noise ColorFit Beat Noise ColorFit Pro 2 Oxy Boat Storm Smart Watch StrapMADE OF SILICONE MATERIAL: Which is soft, comfortable. Fashionable, durable. Eco-friendly for human skin, perfect for daily wear, rain, sweat and water resistantDevices: Smart Watch; Special Features: AdjustableWidth of 0.2cm and length of 1.9cm for a sleek and stylish appearanceEasy to assemble and resize, making it convenient to switch up your look whenever you want