Flexible Ruler 4 Inch 1mm Scale PET Plastic Covered Film Straight Ruler

The folding ruler is made of PET clear plastic, which is worn resistance and unbreakable. It is durable and sturdy, has excellent light transmission, and minimal error caused by temperature for long lasting use. The ruler has a metric scale on one side and an English scale on the other for convenient measurement. In addition, it has a protective film on the surface, which is waterproof and scratch-resistant to avoid inaccurate scales. The small ruler is perfect for factories, research institutes, measuring rooms and workshops use. It can be used to measure the area of a wide variety of products, accurately detect and calibrate various measuring instruments, measure the reduction rate of photo printing films and detect the size of optical projection maps, etc.

Measuring Range: 10cm / 3.94" Minimum Scale: 1mm / 0.04" System: Metric & English Material: PET Plastic Width: 30mm / 1.18" Thickness: 0.15mm / 0.006"