[Durable & Portable]: The line levels designed for brick rope cord wire string bubble hanger tools with plastic case which is durable, and it's convenient to take & storage. [Moulded Design]: With moulded hooks to make pocket line level haning for a builder line. [Wide Application]: The mini line hanging spirit level suitable for bricklaying, engineering, plumbing, metalworking, surveying, guttering, tiling and other equipment measuring etc. [High Precision]: Bubble hanger hand tool for fast and accurate reading. [Packing List]: It concludes 4pcs line hanging spirit levels,bubble string leveler as level measuring inst ents. Colour:yellow/Red Material:plastic<br><br>Package Contents: 4 x Bubble Levels Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.