[【Design idea】 C2D JOY Braided nylon loop upgrades nylon bands in put on One-hand adjustablePrecise Fit. 【Magnetic Clasp】Unique Magnetic Clasp design turns out an elegant looking and keeps your watch snugly to your wrist for better workout experience. 【Quality materials】Made of Stretchy nylonbreathable and washable. Soft and comfortable feeling brings good time all day. 【Significance】 heavy-duty lightweight design features an always-on 24/7 wearing improving the precision of enhanced recovery timer and workout recommendations based on your sleep and wellness data. 【Guarantee】3-Months warranty we provide unconditionally refund or resend with any quality problems.]