Celco 45 Degree Set Square 21cm Clear – Precision Ruler for School, Drafting & Art

Your lines keep drifting off-angle. Or that battered triangle from last year has a nick in the edge and you can't trust it anymore. This Celco 21cm set square gives you a true 45-degree angle in clear, tough plastic. You see the page underneath while you rule. No guesswork. No opaque plastic blocking your work. Sits alongside the 60° square in a standard maths set. $1.15 RRP. Add to cart and get back to what you're actually drawing

• True 45-degree angle for clean, consistent lines every time
• 21cm length rules straight across A4 width without repositioning
• Clear transparent plastic – see your work underneath while ruling
• Durable construction built for daily classroom and studio use
• Part of the standard Australian maths set alongside the 60° square