Set of 30 Hole-Drilled Balls Great for practice! - Bounces like a ping pong ball! ^_^ - Lightweight, useful for hitting practice and training dynamic visual acuity. - Safe, with less worry about injury if hit. - Can also be used for children's ball games and pet toys. [Color] White [Size] Diameter: Approximately 42mm [Weight] Approximately 5g (per ball) [Material] PE Polyethylene (Plastic) [Quantity] 30 If you want a large quantity at once, please inquire for stock check, shipping calculation, and discount! Get even moreお得 with follow and bundle purchases! [Follow Discount] 50 yen off. [Bundle Discount] Available from 100 yen off. (Limited to a total of 1200 yen or more) * If items cannot be shipped together, bundle discounts may not be applicable. * Please inquire in the comments section for various discount requests!