Powerblock Flex U-90 Club Set Including Club Stand With all the same features as the Flex U-90 dumbbells, the club set is designed specifically for the commercial market (health/sports clubs, military and other unsupervised gym environments) as it comes with a 3-year commercial warranty. To minimise the issue of loss or theft within a commercial environment, the Flex U-90 Club Set has two different pairs of handles rather than one handle with the 1kg "adder weights". The club set is equal to and replaces the need for 18 different pairs of dumbbells with a weight range of 1kg-41kg per hand in increments of:2.5kg 4.5kg 7kg 9kg 11.5kg 13.5kg 16kg 18kg 20.5kg 22.5kg 25kg 27kg 29.5kg 32kg 34kg 36kg 38.5kg 41kg