From the manufacturer

Upgrade your adventure with the TWIST Universal Connector + Universal Base. By combining the TWIST magnetic system you love with the Boa® Fit System, any bottle turns into a Fidlock bottle. Use this system to carry your hydration, energy bars, or even your speaker for some tunes on the go.

With wide TPU cable ties, this universal frame adapter can be attached to any bicycle tube or item with a diameter of 28-62mm.

Features

TWIST Universal Connector with Boa
- Compatible with all TWIST Bases
- Can hold items with a diameter of up to 80mm/3.14in
- Anti-slip inlay for strong hold

TWIST Universal Base
- Compatible with all TWIST Bottles
- Compatible with tube diameter of 28-62mm/1.1-2.44in