These are Fifteen #11 Light Duty Blades with Dispenser from Revell.
FEATURES: For trimming and cutting lightweight hobby and craft materials Plastic dispenser is spring loaded to keep the blades ready for use Dispenser has a separate compartment to dispose of used blades
INCLUDES: Fifteen #11 Light Duty Blades and Dispenser
REQUIRES: #1 knife handle
BOX DIMENSIONS: 2.63" W. X .75" H. X 5.38" L. BOX WEIGHT: .06 LBS.