This is a 60 mms wide yo yo made for unresponsive play. you will need a 10 mm yo yo axle and a unresponsive yo yo bearing (also known as a size C bearing). The threads are not tapped so when you thread it in it will cut its own threads I reccomend using super glue on the edge of the axle to prevent slippage during use. Also you will need to orentate the model on your own, Try 25% giroid infill so it is strong and heavy enough for those hard throws.