Features 1 metric and imperial the scale can be switched by disassembling and flipping as needed 2 you can use pencils ballpoint pens refills and fountain pens as long as the diameter is less than 11mm ordinary markers can only use blades or drawing needles 3 concealed backrest hanging platform precise positioning and marking specifications color black silver brassmaterial aluminum alloymeasurable range 0 135mm metric 0 5 5 imperial package included 1 x hongdui hd27 line drawing scriber1 x marking blade1 x marking needle
