Metolius Rock Rings I'm selling these because I used to hang them from a pull-up rack, but I haven't been using them much lately. I haven't used chalk with them. I bought them on Amazon for 7700 yen. I think they're in good condition. Blue and white marble-patterned climbing holds, bolt-on for high stability. - Color: Blue and white marble pattern - Type: Climbing hold - Mounting method: Bolt-on Thank you for looking.