1.Metal type No Metal Type 2.Clasp type Tang Buckle 3.[Breathable & Stretchable] compatible with Fitbit sense bands women men are made of great quality nylon, durable & elastics, stretchable and extremely breathable, skin-friendly and easy to dry, super lightweight, no irritation to the skin, easy to clean when get dirt 4.[Secure Clasp & ]The stretchable and adjustable bands compatible with Fitbit versa 3 bands women men uses a custom-designed ultra-thin stainless steel slider, which can be adjusted in length and can be easily slipped on the wrist. The sense bands can be direct installation and one button removal 5.[Artisan Design] solo loop braided bands for Fitbit sense bands women men is well-constructed, the polyester yarn filaments in each band are interwoven with thin silicone threads using advanced braiding machinery. The link of the movement is very firm and not easy to fall off 6.[Size Adjustable]Size fits the wrist 14-25cm(5.6-9.6inches). This band is super flexible and can be stretched at will. Compatible with Fitbit sense and versa 3 / versa 4 smart watch for women men