Our weights come in a range of sizes, shapes and materials. CAST IRON- Our range is from 100g - 1000kg, in stacking, bar handle or slotted style. BRASS - Our range is from 1mg - 20kg in styles such as knob mass, stacking mass, sheet brass/aluminium, and slotted. STAINLESS STEEL- Our range is from 1mg - 20kg available in cylindrical mass, handle mass, sheet, and solid. A range of boxed sets are available for weights in the 1mg - 20kg range. We can supply QA test reports, trade certification, and NATA reports on our range of weights. Please contact us for your requirements.