Muloo Triangle Ruler for Ship Drawing Chart Drawing 30cm Triangle Ruler for Distance Measurement Geometry Teaching with Handle

Feature: Carved in contrasting colors (black and red), handle has a pencil holder for easyhandling. As a pair for transmitting directional lines on a chart, the protractor scale can be easily aligned with chartwarp in any direction. Maintain orientation, as one triangle slides along the other to the desired position, and a 90-degree helps determine line of position. Make of clear and durable material. Protractor Triangle with Handle is an essential tool for accurate chart work and plotting, making it a must for any sailors. Specification: Material: Plastic Size: Approx. 33.6x23.8cm/13.23x9.37in Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Triangle Ruler