Bike seatpost light leveller/wedge

Many rear bike lights are held on by stretchy rubber straps - these are ideal to attach to the seatpost, but end up with the light pointing downwards where it is not so obvious to motorists.

This simple wedge is placed between the seatpost and light to angle it back up. A lip on the top stops it slipping out, as a wedge would tend to do.

The size is made for a standard 27.2mm dia tube, simply scale on the printer for other seatpost sizes.