Helps students construct and measure angles triangles and other geometric shapes. Shatter resistant transparent SAFE T Plastic is flexible. Ruler measures up to 12″ 30 cm and 360°. Versatile ruler with black markings is perfect for construction and measurement of angles triangles and other geometric shapesShatter resistant transparent SAFE T Plastic is flexibleRuler measures up to 12 Inch 30 cm and 360° Manufacturer: Learning Resources; Model: 43054; MPN: 43054; Part Number: 43054; UPC: 599038291653; Color: ; Brand: Learning Resources; Department: Supply; Size: ; Warranty: ; Label: Learning Resources;