MDW 7 pack Secure Silicon Fastener Ring for Garmin Vivofit to Fix the Band Clasp Fall Off Problem,dont Lose Your Garmin Vivofit! Only the Fastener Ring Not Include Replacement Wristband Please NOTE: the silicon ring was designed a little bit smaller in width than Vivofit band, because we find smaller size can fasten the band tighter mixed colors of 7 pack means containing 7 pcs mixed colors fasteners, not 3x7=21 pcs Secure your investment to your health! Dont wait, you will lose it at some point! never worry lost your gamin vivofit again fit properly, include only silicon fasten ring, no wristband,tracker,clasp etc...