all4fit Fashion Pendant Necklace Holder for Fitbit Flex, Fitbit One, Misfit Shine, Withings Pulse O2, Sony Smartband SWR 10 necklace for fitbit one, fitbit flex, misfit sony smartband, Withings Pulse, sony smartband 31" Strap with Secure muti-function loop pouch pouch size: 1.18 inch X 2.25 inch X 0.8 inch (3cm X 6cm X 2 cm). it can loop through most belt/strap of up to 1.5 inch thickness (4cm) Used for sports & sleep. fashion gift for her. Having wore plastic holder for a season? time to use this new fabric holder for your fitbit . chose the color to match your necklace clothes and style. low weight: 0.3 oz (9 gram). used as carrying case and holder for your fitness fitbit tracker.