●[Great Accessory] Designed to help players of all skill levels improve their game ●[Material] The billiard training ball is made of high quality resin material. This product is sturdy and durable. ●Red spot: The billiard ball has a red spot to visualise the spin of the ball. ●[High Quality] With bright gloss, roundness according to international standard, high hardness and fast response on impact. ●[Portable] The exercise pool ball is easy to carry and use.