Features: 16mm is the ultrathin series. 17mm and 19mm are the original series. 20mm is the multifunctional jelly series, fit for SUSB401, SUSB402, SUSB101, etc. Made of high quality silicone material, make you feel light, sturdy, soft and flexible during your wear. Waterproof and sweat-proof, comfortable to wear. Simple to install and change your band, help you inatall DIY quickly in a short for time. Multiple colors to choose, stylish and bright, fit your personality. Watchbands only, other accessories demo in the picture are not included Specification: Material: Silicone Type: Watchbands Version: 20mm(0.79in), 19mm(0.75in), 17mm(0.67in), 16mm(0.63in) Color: Brown, Dark Blue, Navy Blue, Black, Red, Yellow, White Size: One Size Band Length(Not Included Buckle): 11.8+8.0cm(4.65+3.15in), 12.1+8.5cm(4.76+3.35in), 11.0+8.0cm(4.33+3.15in) Buckle Width: 20mm(0.79in), 19mm(0.75in), 17mm(0.67in), 16mm(0.63in) Quantity: 1 Pc Note: 1.No retail package. 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Watchband