Features: Versatile performances: These lapping stones have a wide range of applications. You can use them for honing knife, wood chisel, jade, seal, seal cutting tool and glass brick chamfering, practical and intimate design for you. Utility gift supplies: The wet stone sharpeners are feasible to be sent as practical gifts to your friends, parents, relatives, neighbors, colleagues and some others, making them feel your considerate thoughts. They can widely apply them in their daily lives, and will thank you for your useful items as well. Specifications: Material: diamond Color: silver Size: approx. 17 x 7.5 x 0.1 cm/ 6.69 x 2.95 x 0.04 inches Package includes: 3 x Diamond sharpening stones Warm notes: Manual measurement, please allow slight errors on size. The color may exist slight difference due to different screen displays.