Four-piece set of the most popular mathematical instruments. Tinted plastic provides excellent visibility and is ideal for students of higher math, drafting and engineering. Protractors and squares feature beveled center openings.

• Four-piece set of the most popular drafting and geometry tools.
• Tinted plastic for easy visibility.
• Beveled center openings.
• Includes a 12" ruler, a 180° protractor, a 60° set square and a 45° set square.