Both sports beginners and professional athletes are happy to work with micro weights. The former because they can see at least a few weights on the Olympic barbell and the latter because they are gradually progressing and setting new records in lifts and push-ups almost every day. Excellent materials which minimize weight deviations were used to make the KingsBox Micro Weights. Weights are sold in pairs.Disc thickness:0,5 kg: 6 mm / 130 mm1 kg: 10 mm / 139,8 mm1,5 kg: 15 mm / 139,8 mm2 kg: 15 mm / 158,5 mm2,5 kg: 18 mm / 161 mmWarranty on Outlet products.The specific difficulties of the purchaser with the outlet products of the company KingsBox d.o.o. will be treated individually, case by case.You can not return products from outlet category.