This is the Premium Knife Value Pack with Safety Cap from Revell.
FEATURES: For trimming and cutting light weight materials
Plastic anti-roll contoured handle and protective cap
One blade installed and a package of five #11 replacement blades
INCLUDES: Premium Knife Value Pack with six Blades and plastic Blade Case
SPECS: Length: 5.75" (146mm) including blade
Handle Diameter: 0.55" (14mm)