Pia Barware’s shaker set includes two professional grade stainless steel cocktail shakers built for years of commercial use. The 28oz and 18oz shakers are built with the heaviest stainless steel of any shaker on the market (40% heavier than the industry’s leading brands) and designed for perfect balance, with consistent sealing and separation. Built with reinforced 360 degree welding for the weight caps on both tins.