18-Piece Geometry Set Includes Plastic Compass, Protractor, Pencil, Compass, Eraser, Pencil Lead Refills Durable Metal Compass Will Not Bend or Flex During Use; Ergonomically Designed Compass Head for Comfortable Handling; Universal Holder Works with Any Standard-Sized Pencil or Pen Rulers, Triangles, and Protractor Feature Graduations for Easy Measurement and Alignment Comes in a Durable Storage Box for Easy Carrying and Organized Storage Practical Tool Set for Students, Teachers, Math Experts, Architects, Engineers, Artists, and Designers at Any Level Ideal for Use in School, Office, Home, or Field Work Material: Plastic Color: Green, Blue, Clear Please Allow 1–2 cm Slight Measurement Deviation Due to Manual Measurement Product Color May Vary Slightly Due to Monitor Display Differences Package Includes: 18-Piece Math Geometry Set