High Quality : Made from thick high-quality carbon steel and with a sizable length of 8 inches. Built for demanding projects. Easy to Use: with lockable design,it is easy to adjust and draw , convenient for repeat measurements or drawing circles and arches, it won?t skip or slide out of your control Pencil Holder To Easily Draw Circles Up To 22? In diameter for most of the materials. Widely Use :professional tools for carpenter and designer, ideal for woodworking, carpentry, metalworking and leather work 100% RISK FREE PURCHASE: If you are not satisfied with Nicpro woodworking compass, we?re very happy to either provide a no-questions-asked Refund or Replacement. Order today risk free!