Sparco Professional Protractor

Professional protractor features an open center and accurate 6″ ruler across the base. Sharply defined raised graduations are black-bonded in crystal-clear plastic.

• Open center allows accurate placement for consistent measurements
• Easy-to-read graduations are sharply defined to prevent reading errors
• Transparent construction lets you see writing on papers
• 6″ ruler on base offers additional way to measure for consolidated use