The TRIO of dumbbells in detail: 4 discs of 1.25 kg. 4 discs of 2.5 kg. 4 discs of 5 kg. 2 discs of 10 kg. Bore diameter 31 mm (center hole). One 120 cm Curl SZ barbell with two 18 cm receivers (weight: 8 kg). Two 35 cm short barbells with two 10.4 cm receivers. Six star clamps. Chrome-plated dumbbell set with 68 kg Curl barThis set is all you need for a training session. Dumbbells are the ideal companions for muscular exercises. Thanks to the SZ bar, you can train gently without straining joints and ligaments. What else do you need to know? With a total weight of 68 kg, this set will keep you training effectively for a long time. Thanks to the 30mm diameter of our bars, you can use many different weights with a 31 mm bore. The clamping stars hold the weights securely exactly where you attach them. This allows you to concentrate on the essentials, even when exercising at height. Dimensions of discs included in the set: 4 x 1.25 kg discs: outside diameter 12 cm, width 2 cm 4 x 2.5 kg discs: outside diameter 17.7 cm, width 2 cm 4 x 5 kg discs: outside diameter 20.5 cm, width 2.6 cm 2 x 10 kg discs: outside diameter 29 cm, width 2.5 cm