Lansky's Diamond Bench Stones are designed for expert knife sharpening and woodworking tool care. All Lansky Diamond Bench Stones feature a full edge to edge diamond grit surface for quicker, more efficient sharpening. They are available in two sizes and five grits. Lansky's Diamond Bench Stones feature a high impact plastic self storing case that raises the stone as shown to the left for maximum safety and comfort. The bases come with non slip feet and an overmolded rubber frame.