1. Sufficient Quantity and 2 Sizes:you will receive 3 sets of the cocktail shaker cups, 6 pieces of stainless steel shakers in 2 sizes,including 3 pieces of 18 oz and 3 pieces of 28 oz shakers.The sufficient quantity and 2 sizes can satisfy your multiple demands better. 2. Quality Material: the bartender shaker is made of quality stainless steel,durable and reliable, not easily break or deform, stays shiny and after years of shaking, and can withstand a lot of rough tumbling and even drops,allowing you to use with confidence for a long time. 3. Leak Proof Boston Shaker:our boston shaker set, can effectively keep the drinks or liquids away from leaking; Allowing you to confidently shake or stir cocktails on demand, the can shaker is easy to seal and open and mix cocktails faster and more efficiently. 4. Dishwasher Safe: the boston cocktail shaker can be easily cleaned after making mixed drinks; You can directly put it in the dishwasher and wait for several minutes, no worries about that our shakers would break, and wait for it to get clean again, effectively saving your time and energy.