Small slopey foot holds
Sets of identical 30mm diameter foot holds. These are perfect half spheres made from solid beech. Their profile and smooth texture makes them very, very hard to use for your feet whilst not being dependent on having a brand new pair of shoes. Perfect for improving core tension and footwork whilst saving your shoe rubber. On steep boards it's often easier to campus than to use these feet!
Attached with a single 5mm diameter screw.