This hoop is 3/4 OD polypro, it is a rubber bouncy polypro that is near impossible to break! Super fun brand new tubing All hoops are cut & measured outer diameter (OD). This hoop comes collapsible with a snap lock button Also if you feel you may need more grip we offer a layer of grip tape to be put on the hoop additionally to give more grip look for add on in our shop If you have any questions or custom order request feel free to send me a message & I would be happy to try to make you exactly what you’re hearts desire ❤️ If you cancel a order you will not receive a refund because each hoop is made to order. You will have the option to a store credit however Lightning Gloss [3/4]