I used these with wooden poles and the cup bends easily which makes the poles knock out easily and I'm constantly trying to bend the cup back into place. I would not recommend them! I got these steel ones instead and I couldn't be happier with them: https://www.horseloverz.com/horse-barn-stable-supplies-equipment/horse-arena-supplies/jump-cups/steel-jump-cups-with-black-pins
EquiRoyal Jump Cup at HorseLoverZ.com.
Made of heavy metal with steel pins to keep cups straight. Sold in pairs.
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