Hole-filled balls, a great value set of 30. * Durable and Lightweight Difficult to break even if stepped on, and doesn't hurt when hit! Each ball weighs 6g, making them convenient to carry. * Difficult to Fly Far The hole-filled design makes them difficult to fly far, making them ideal for indoor practice! Suitable for improving hitting power in baseball and golf. * Washable Made of washable material, so you can wash them clean even if they get dirty, keeping them sanitary! * Highly Visible Fluorescent Color The fluorescent color is easy to see even in the dark, making it safer to practice at night as the ball is easier to see. 【Product Details】 ・Contents: 30 pieces ・Size: Approximately 42 mm ・Weight: 6g / piece ・Color: Green ・Material: Polyurethane 【Uses】 For improving baseball skills! You can aim to improve your hitting power by training to hit the sweet spot of the bat. Also for golf practice! You can aim to improve your hitting power through batting practice and toss batting. ◎ Also great for children's outdoor play and as toys for dogs and cats.