Description Walnut Cracker Stainless Steel Coil Spring Clip Sheller Walnut Cracker Walnut Opener Description High quality spring ABS plastic material Made of powder based plated high carbon steel Optimal elastic range is 25 cm-40 cm (large nut with elastic but 40 cm in diameter) Do not reach into it when using it. This is an amazing nutcracker that just uses a powder based tension spring to loosen the nut and break the nut shell. Spring locks the case to prevent splashing. Safe and fun. Compared to traditional hammers and pliers, it is safer to crush all kinds of shells because it wont hurt your hands. It is convenient for everyone to use. You can still use the decor beautifully. Different nuts require different intensities depending on the childs state of mind. Doing it yourself can improve their observation, analysis, evaluation and problem solving. Most Nuts Promote Childrens Brain Development Contains: 1x Walnut Opener Note, because there may be color and size differences between the light effect photos and the actual product, please allow 1-2 cm error Quantity: (1) Walnut Cracker Color: Stainless Steel Size: 7cm in diameter x 10cm in height