Printed on the product's plastic sleeve and stamped in the metal of the product itself.
Stamped in the metal of the product; this is a patent number.
package (each): 4 5/8 in x 1 in x 1/8 in; per item: 4 in x 1/2 in x 1/16 in
This object consists of three rectangular grinding stone assemblies packaged in open-ended plastic sleeves. The assemblies consist of a metal frame that holds two grinding stones so the wide surface of the stones are exposed. The frame is open-ended.