This 50mm four-piece grinder is made out of aircraft-grade aluminum.

This 42mm grinder is made out of aircraft-grade aluminum.

This 32mm four-piece grinder is made out of aircraft-grade aluminum.

This 100mm four-piece grinder is made out of aircraft-grade aluminum.

This 63mm four-piece grinder is made out of aircraft-grade aluminum.

This 56mm four-piece grinder is made out of aircraft-grade aluminum.

It's a toy! It's a grinder! It's a combination toy and grinder!