The traditional Stanley knife has been copied, with slightly different design features by several other manufacturers. Some are branded trade names, others are unbranded. We are here selling any version that is as robust ad efficient as the original Stanley, without specifying the manufacturer. They all take the same size trapezoidal two-way, two-notch blade (Stanley reference 1992).
Pencil knife ~ metal ~ colours
Scalpel handle ~ SM No3
Trapezoidal sliding blade ~ plastic ~ by Stanley
Pencil knife ~ plastic ~ five blades ~ coloured