SUPOW(TM) 2PCs Large Size Durable Soft Moderate Waterproof Replacement SmartBand Smart Wristband Band Wrist Strap For SONY SWR10 (180MM-240MM Black+Green) Applicable to smart wearing wristbands equipment. Suitable for your personal style and taste with comfortable rubber straps. Wear -changing wrist bands is easy. Express yourself with color. The size can be adjusted according to the circumstance of individual wrist. Wrist strap design with human body engineering. Durable and soft moderate.