Scola-Tec drawing board with ruler that AUTO locks at left, it has 2 built in paper clamps.
Conventional 75cm T-Square for A1/A2 size boards.
T-Square with a 60cm blade and removable head.
Scola-Tec A3 drawing board with unbreakable ruler that can lock at both ends. Comes with a masking tape and tilters to lift the board for smooth drawing.
Conventional 45cm T-Square for A3 Scola-Tec and any other board unbreakable.