With the Sola hk 1/4 W12 carpenter folding rule, you achieve fast and dependable measurements in workshops and on demanding job sites. While traditional wooden rules can swell or warp when exposed to moisture, this 1 m rule made of fiberglass-reinforced polyamide remains rigid and fully resistant to cold and wet conditions. Heavy-duty brass hinges allow you to fold and unfold the 4 sections smoothly and repeatedly. Being electrically non-conductive and compliant with ec accuracy class III, it provides the precision and safety you need when measuring and marking beams or panels.