product 1.Heavy Duty and Durable - Shell Cracker Seafood Cracker is Made of premium zinc alloy, high hardness, and corrosion resistant, not easy to rust and long time using.The Nut Cracker use Sawtooth design,It can firmly clamp the goods not easy to fall off, can be better stressed, easily crumbled hard shell food. 2.Design:Stylish and ergonomic design, great for restaurants, picnic and home use. 3.Durable and practical: Easy to carry, easy to clean. 4.Effortless to Open Walnut - Double clamping design, with two different size tongs, big and small nut can be crushed at the same time,the whole design cater to lever principle, it can effortlessly clamp two different shape walnuts simultaneously. 5.Multipurpose - Perfect for walnuts, pecans, almonds, brazil nuts, hazelnuts, etc. Good for Seafood, e.g. Lobster, Shell Fish, Oysters, Crab Shells and Nuts.