This is a product we have made. We use high-quality lead and have finished it to be neither too soft nor too hard. We can accommodate combinations of 1kg and 2kg weights as you like. [Weight Dimensions] 1kg: Length approx. 85mm, Width approx. 75mm, Belt width approx. 55mm, Thickness approx. 20mm 2kg: Length approx. 85mm, Width approx. 105mm, Belt width approx. 55mm, Thickness approx. 25mm Snorkel