The solid-wood Campus Rung Half-Round with two radii by KRAXL-BOARD is awesome for training your sloper strength.

The surface is ribbed to create a better grip. It comes with two different radius degrees, one for each side, and thus can be used on each side with a different training outcome. Spaces between screw holes are drilled so, as to allow the Campus Rung for mounting onto a wall or fingerboard, like the Kombi-Pegboard by KRAXL-BOARD for example.