[Durable & Portable]: levels designed for brick rope cord wire string bubble with plastic case which is durable, and it's convenient to take & storage. [Moulded ]: With moulded hooks to make pocket line level haning for a 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 instruments. Colour:yellow Material:plastic Package Contents: 4 x Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.