These Sticks Are Made Of #240 Sapphire Abrasives And Come In A Variety Of 6 Different Shapes. They Are Ideal For Working With Jewelery And Other Metal Crafts. The Various Shapes Can Reach In Wherever You Need For Your Project. Shapes Included Are: Square, Retangle, Equalaterial Triangle, Isosceles Triangle, Half Circle And Round.

* Each Stone Stick Is 6" Long

* Long Lasting Abrasive Finish

* Professional Quality

Works on carbide and high speed steel

Material: Green Silicon Carbide