Package include 100PCS colorful spring wrist coil keychains. (5 colors, 20pcs for each color) Material: EVA. Non-toxic, waterproof, soft and comfortable. Size: 2.5 inches diameter spiral wristband fits most adults wrist with a 1 inch metal keyring to hold keys. The band is very flexible so can fit around both kids and adult wrists. Fit any size wrist: with spiral design the wrist key holders are highly flexibility and stretchy, very easy and comfortable for you to wear on your arms, they fit any size wrist. Widely used in home, office, workshop, shopping mall, sauna, swimming, security ID badge, gym, pool, beach, jogging and other outdoor place. TIHOOD Colorful Wrist Keychains   The wrist band Key chains come in 5 different colors including yellow, red, blue, purple, and black.   Multipurpose： 1. You can use them for carrying your keys, security ID, badge, Idea use for gym, pool or beach, DIY Projects, or to give as birthday party favors. 2.It also can be hair rope, if you remove the steel ring, you can use it to tie your hair and so on.   Easy and comfortable to wear 2.5 inches diameter spiral wristband fits most adults wrist with a 1 inch metal keyring to hold keys. They are very flexible, which makes them very easy and comfortable for you to wear around your arm / wrist.