Finally a pouch that suits every transponder! Mount your battery or rechargeable transponder to your car (using bolts or zip ties - not included). Enables easy access and also great when swapping transponders with co-drivers at events. Large grommet holes allow you to place it in any position required. Has an extra large clear plastic window where the indicator lights can be seen on all Westhold transponders. Also included: a foam insert for the smaller 'old style' Transponders. *will fit any transponder within the following dimensions: Width: 6cm (2.3in) Height: 7.6cm (3in) Depth: 2.5cm (1in)