Unique holder enables the fixation of the plate on the seat post. All the hardware included (holder, allen keys, screws and nuts). The holder can be easily attached to a broad spectrum of round seat posts with the perimeter 69-100.5 mm (2.72-3.95 inch). Suitable for vintage old-timers, city, kids and sport (road, mountain) bikes. If your bike is really special and you want to be completely sure that the holder can fit the seat post, please measure it. You can find the instructions here.
The holder is made of durable plastic and is available in matt black colour. The dark colour is less noticeable, so all attention goes to Kick Ass Bike Plate.
Make sure that your bike seat is at least 4 cm above the frame so there is enough space to mount a Kick Ass Bike Plate. Keep in mind that also a basket or a child seat at the back rack can make it difficult to mount a Kick Ass Bike Plate with holder. In this case, you can order only a plate and mount it on your own on a basket or any other place you prefer.
Instructions how to install a plate are here.