The SM 0R II is an updated version on the SM 0R handle, Swann Morton Part number 4307. It is supplied sealed in clam shell packaging with 2 x SM01 blades.It has a lightweight PCABS body and is a highly versatile cutting tool produced with designers, graphic artists and modellers in mind with the added security of a retractable blade mechanism. It also features audible clicks when the blade is moved to indicate mid usage and safe retracted positions. With simple blade changing it fits the SM01, SM02, SM03 & SM04 type craft blades.