Sigma Butler 3 handlebar holder The SigmaButler handlebar holder keeps space on your handlebar. The sturdy holder is stable and holds your bike computer securely. The holder comes with an additional mountable adapter for camera or lighting. Specifications: Colour: black Material: plastic Suitable for: BC 5.16 BC 7.16 ATS BC 9.16 ATS BC 14.16. STS / CAD BC 16.16 STS / CAD BC 23.16 STS Pure 1 ATS Contents: 1 Handlebar holder 1 Camera adapter 2 Control adapters