This is the Bottom Disk only, part of the cordless resetting targets. The part in the picture is an old part that has been superseded with a new shape bottom disk.
It is a straight swap and compatible with all cordless resetting targets with the exception of the 6mm top disk version
The target disk is a 40mm target .
It will be twisted and painted unless specifically requested not to, these can be supplied flat and unpainted if you wish.