Thank you for viewing. This is a chop cup set for routines by Pipo Villanueva. I purchased it from a craftsman in the United States who hand-sews leathercraft. He is a craftsman with extensive knowledge of magic, producing and selling items such as cups and balls, magic bags, and balls and cones. He himself stated that he made it for Pipo Villanueva's routine, and the strength of the magnet is exquisite, adjusted so that the cup will drop if you throw it in your hand or shake it strongly. It can also be used as a regular chop cup, and the balls are small and versatile. Chop Cup Chop Cup Cups and Balls Cups and Balls Cups and Balls Magic Magic