PREMIUM PUNCHING BALL: Speed Bag made of thickness PU material, The sphere is strong and sturdy, durable, strong extensibility, high elasticity, not easy to break. PERFECT SOLO TRAINING EQUIPMENT: Boxing Speed Ball can help train reaction, agility, punching speed, skills and hand eye coordination, home gym interesting workout . EASY TO Set: No screws needed to attach it to desk or countertop since it has a suction cup as a base,can easily stick it to any flat and smooth surface. STABLE AND STURDY: Stable rebound without fracture, alloy spring steel, smoth steady, rebound speed can keep up with; strong adsorption, seamless for, suction cup suction up to 70kg. SPECIALLY DESIGNED: Desktop Punching bag balls suitable for boxing, fighting and other punching training, and for professional use in gyms, workouts at home gym. Specification: Material: PU Size:17.7cmx40cm/6.97inchx15.75inch Package Includes: As You Choose 1 Boxing Punching Bag, 1Inflator or 1Boxing Punching Bag, 1Inflator, 1 Pair Half Finger Gloves or 1Boxing Punching Bag, 1Inflator, 1 Pair Kids Gloves Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!