This is a set of 9 foot holds. They are made of plastic and produced with a 3D printer. 【Product Features】 "I don't want to dedicate the holds I bought just for feet..." "Instead of buying catches to attach to volumes and crimps, I want holds that are more 'grippy'..." We have created affordable foot holds and catches for those people. 【About Friction】 Each hold has a side with friction and a side without. Friction can be felt to some extent even without chalk. By using chalk or PD9 in combination, you can feel sufficient friction. ⚠️ Important Notes for Use Compared to general resin-molded or urethane holds, the strength is inferior. The creator himself uses them daily, and no major problems have occurred so far. Over-tightening the screws will cause damage. Please be careful not to overtighten them when installing. Please use them at your own risk.