Description:Regulation Size: With a circumference of 23 cm (9 inches) and diameter of 7cm (2.8 inches)a weight of 5 oz, they are a standard size and weight for official competitions and practice session. NOTE: Only use wooden sticks to hit, aluminum sticks will deform when hit.Durable Material: Our hard baseballs are made with synthetic leather material and double-stitched seams to withstand the wear and tear of repeated use, filled with compressed sawdust to reduce impact and increase cushioning, preventing the balls from deforming easily, ensuring they have the perfect weight and feel. (Note: Hard baseballs are not elastic)Package Contain: We provide 3 pieces baseballs, enough replacements for the team and individual training or games.
