STANLEY 10-401 HOBBY KNIFE 5-1/8"" LONG AVAILABLE WITH A STRONG YET LIGHTWEIGHT ALUMINUM BODY. FOR LIGHT AND MEDIUM DUTY PRECISION WORK. POSITIVE METAL BARREL BLADE LOCKS. WORKS WITH STANDARD HOBBY AND CRAFT BLADES. BLADES INCLUDED (11-401) 1. FOR USE WITH 11-401 MUST BE 18 YEARS OR OLDER TO PURCHASE THIS PRODUCT