The straight ruler is made of aluminum alloy, with high hardness, strong toughness, anti-rust and anti-corrosion, strong and durable, lightweight and reliable.High-gloss anodized surface treatment that ensures lightweight construction while significantly improving its wear and corrosion resistance, plus laser-etched scale markings for sharp, durable readability.This ruler features a rounded-edge design with no burrs for safe handling that won't scratch your hands; its hollowed-out center comes with wavy lines to facilitate easy division and marking of measurements, while the integrated hanging hole allows for convenient storage and display by hanging.
eBay