Keychain Case Pouch Keyring for Fitbit Flex / Fitbit One, fitbit zip, Misfit Shine flash, Withings Pulse O2, Sony Smartband. fit strap/ belt / bra middle up to 2 INCHES ONLY. 1 pouch, simply clip it on handbag/ zipper/ sport bag/ belt/ strap (size: size: 1.18 inch X 2.25 inch X 0.8 inch (3cm X 6cm X 2 cm)) It fits fitbit zip, fitbit one, fitbit flex, Misfit Shine, Withings Pulse O2, Sony Smartband It can loop through watch strap /belt of up to 1.5 inch width (4cm) LOW WEIGHT pouch, only POUCH, (No strap, NO watch included) used as handbag accessories for carrying case and holder for your fitness fitbit tracker.