Compatible Model: YOMNA Silicon Sports Strap Compatible With Samsung Galaxy Watch 4 40mm 44mm/Galaxy Watch 4 Classic/Active 2 40mm 44mm/Galaxy Watch 3 41mm Bands, 20mm.Not suitable for other smart watches Available Size: The replacement strap fits for 140mm-220mm(5.51"-8.66" ) wrist. The strap's width: 20mm. Only one size for choice, suitable for most small and large wrist High Quality Material: Our watch strap is made of high-quality soft silicone material. Stainless steel buckle design. Breathable, waterproof, durable and flexible, very comfortable to wear on wrist. There are various colors available for you to choose, perfect fit for you to personize your new Galaxy Watch 4, and colorful your life. Easy to install: The wristband comes with watch pins on both ends of the strap, which can lock onto your watch. Very easy and quick to install and remove. No other tools needed