Weight: 5 kg. The Sport-Thieme compact dumbbell is the premium cast iron dumbbell for your fitness. The compact dumbbells from Sport-Thieme are excellent for professional use in gyms and at home. With their optimal shape, you can perform your strength training exercises with maximum mobility and will not be restricted in your movements. The cast iron dumbbells are firmly screwed together and are not interchangeable. You can get the compact dumbbell in different weight classes. Product details: Ø handle bar: 30 mm, Ø 1.25 kg disc: 13.5 cm, Ø 2.5 kg disc: 16 cm, Ø 5 kg disc: 20 cm, length of grip: 12.5 cm, weight: 5.0 kg.