Description The silicone material used in this product makes it incredibly sturdy and durable. It is easy to use, even for beginners, making it the perfect tool for pitchers of all skill levels. With its ability to teach proper rotating mechanics for rises, drops, screws, change-ups, and hand tosses, this training aid is a good item for anyone looking to improve their game. Features -Color:As Shown -Material:Silicone -Size:15.00X15.00X1.50cm/5.89X5.89X0.59in - Double sides polishing, good hand feeling and rich in adhesion. Excellent mobility, this pitcher training disc can meet the principle of fluid dynamic. - Portable disc helps you perfect your skills from the comfort of your home, office, park and the club. - Simple in structure, easy to use, not easy to deform, you can use it with confidence. - Every detail is carefully crafted, so you experience the high durability and practicality. - With its ability to teach proper rotating mechanics for rises, drops, screws, change-ups, and hand tosses, this training aid is a good item for anyone looking to improve their game. Double sides polishing, good hand feeling and rich in adhesion. Excellent mobility, this pitcher training disc can meet the principle of fluid dynamic. Portable disc helps you perfect your skills from the comfort of your home, office, park and the club. Simple in structure, easy to use, not easy to deform, you can use it with confidence. Every detail is carefully crafted, so you experience the high durability and practicality. With its ability to teach proper rotating mechanics for rises, drops, screws, change-ups, and hand tosses, this training aid is a good item for anyone looking to improve their game.