Triangular Scale Rulers. Available in 4 different scale sets, each ruler comes in a protective case.

• Made in ABS Plastic
• Colour Coded Centre Strip
• Hard Plastic Carry Case

• TSR1 Ratios 1: 20,25,50,75,100,125
• TSR2 Ratios 1: 20,25,33/3,50,75,100
• TSR3 Ratios 1: 2.5,5,10,20,50,100
• TSR4 Ratios 1: 100,200,250,300,400,500