Item Type: Kids Tennis BallsMaterial: Rubber and Plush .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Premium Material: These kids tennis balls are made from premium plush and natural rubber material, which ensures flexibility and long service life. 2Light Weight: These kids tennis balls features light weight and soft hand feel, and softness and elasticity are ensured. 350% Pressureless: The pressure of these kids tennis balls is 50% lower than adults tennis balls, which is very safe for kids. 4Kids Training: Waterproof outer layer combined with thick plush, adapt to different humid and cement field, suitable for children training/teen training. 5Unique Design: These kids tennis balls are a great choice for use when instructing children or adult beginners on the fundamentals of tennis.