Ideal for engineers, designers, craft enthusiasts, and anyone requiring precise measurements in their daily tasks accuracy measurement with the Miniature Folding Ruler Keychain, featuring a design that unfold to 50cm, perfect for quick and accurate measurements Its water resistant and scratch proof construction ensures durability, making it a efficient tool for both professional and casual users Crafted from, this lightweight ruler boasts a 10 fold design with clear metric scale for various measurement needs Perfect for home renovations, outdoor activity, and measurements, this folding ruler adapts to various scenario, Manufacturer: Oxxggkao