The Tennis Nassau Mini Cool balls are pressureless type, meaning they have a core without compressed air. They are suitable for training children and beginners as their speed and bounce are lower compared to air pressure balls.

• ITF Approved: Yes
• Packaging: Can
• Pieces: 3
• Surface: All
• Felt: Regular duty needle felt
• Weight (gr): 36.0-46.9
• Bounce (cm): 105-120
• Dimensions (mm): 65-67
• Deformation: 0.551"-0.650"
• Type: Pressureless