ACBEE Metal Security Lock for fitbit alta. Multi Color, Never cause harm to the wrist and fitbit alta band. 1,Specially designed fastener for Fitbit Alta.Metal materials,Elegant and Durable. 2,Keep the band from falling off, secure your loved wristband in style. 3,Including 3 pcs mixed color Metal lock ONLY, NOT include fitbit alta! 4,More color choices,make your wristband with different styles. 5,If you really love the original Alta strap,Go get it,You will never worry about losing your alta.