Strong Material: This durable nutcracker is made of high-strength zinc alloy that the nutcracker will not bend, rust or chip when using. Suitable Size: The thick handle makes the nut peeler more durable, labor-saving and comfortable . Both the elderly and children can use the nutcracker to easily open any nut (about 5.5 x 18 x 8.5cm). With Tension Spring: The inside of the nutcracker is equipped with a labor-saving spring. Compared with the external spring with resistance, the built-in spring can easily reset the walnut cracker, and the corresponding force of the spring makes the nut cracker more labor-saving. Multi-functional design: This nut cracker has 4 jaws, easy to crack open nut shells without damage of the kernel, suitable for hazel, pecan nuts, macadamia, walnuts and almonds up to 4 cm in diameter.