Bar Scriber,This is a must have tool for any floor layer installing all types of LVT such as Karndeen,Mflor, & Amtico flooring. Floor layers will find this invaluble when doing pressision layouts around curved areas. The Bar scribe uses brass rollers to accurately follow the shape the floor layer is working too, scribing the tile or sheet with the shape the floor layer needs to cut.Overall length 48cm and maximun scribe distance 42cm down to 5cm.