Description: Safety design to protect your hands Stable sucker disc base & Non-slip mat Made of stainless steel, ABS plastic, durable to use Come with 4 high quality stones, 180#, 400#, 800#, 1500# Angle indication mark on adjustable pivot rod can show the accurate knife angle Specification: Stone size: 15.5 x 2 x 1cm Stones: 180# 400# 800# 1500# Stone Material: Silicon carbide Note: BLACK OR CAMOUFLAGE color carry bag will be randomly sent out. With a sucker, can be fixed on smooth and flat surfaces stably. (If you put some water on the bottom of the sucker, it will have stronger adsorption capacity. Package Included: 1 x Microfiber cloth 1 x Instruction guide 1 x Sharpening Frame(Knife is not included) 4 x Grinder stones 1 x Nylon case 1 x Marker