At last – a dedicated kneeling pad for detailers, made from thick, robust 25mm foam and a generous 450x300mm in size. Why rock on your haunches when you can kneel on this bad boy. Gravel drive? Pah. Bring it on.
Made from wipe-clean non-absorbent material with a carry handle and 'hook hole' for hanging it on the wall when not in use.
Could also make an interesting frisbee for throwing at colleagues, or shield in a NERF gunfight. What you do with it is up to you. We can merely inspire.