DIY транспортир школьная офисная угловая линейка ABS портативная математическая Геометрическая 180 градусов измерительный инструмент Многофункциональные аксессуары

Features:
Made of ABS, easy to remove by turning the screw.
ABS not easy to rust, durable.
Measuring range is 0-180 degree.
It can draw circles or arcs with a diameter of 4-30cm.
Simple measurement for angle and length.
Specifications:
Type: angle ruler
Material: ABS
Color: silver
Size: about 30cm
Package included:
1pc x angle ruler
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2 cm differences due to manual measurement.