The original Stanley Interlock crafting, modelling, signmaking & graphic arts knife, Stanley part number 0-10-590, a unique little knife , perfect for crafters hobbyists, graphic artists and signmakers. The knife is supplied 3 x Stanley 11-221 blades.Produced by one of the world's most trusted brand names this knife features the following details - easy opening, a great ergonomic shape with a very positive and comfortable grip. The tool has an intenral compartment for storing spare blades.