The Slamball Sport-Thieme: with a structured surface / The Slamball Sport-Thieme is a PVC-coated, steel sand-filled fitness ball designed to meet the needs of athletes of all levels. Available in a variety of weights and colors, this equipment offers each user the possibility of selecting the model best suited to his or her fitness level. Its structured surface ensures a better grip, enabling training that's as effective as it is safe / / - Durable PVC coating / - Filled with steel sand for stable weight / - Available in a variety of weights and colors / - Structured surface for better grip / / This Sport-Thieme Slamball combines functionality and versatility, making it an excellent choice for all types of training, enhancing endurance, strength and coordination. An indispensable addition to professional fitness and sports equipment / Material: Plastic / Product type: Balls / Diameter: 28 cm / Color: Black / Weight: 20 kg / Filling: Steel sand