[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 instruments.Colour:yellowMaterial:plasticPackage Contents:4 x Bubble LevelsOnly the above package content, other products are not included.Note: Light 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.