mechanical pencil 0.5 mechanical pencil set, nicpro 3 pcs pencil with erase and 6 tubes lead refill, case for drawing, writing, drafting, sketching nicpro specification<br> type: self sharpening mechanical pencils<br> size:0.5mm<br> material:plastic<br> color: black, blue, purple<br><br> lead refill<br> material:resin<br> color: black<br> size: 0.5 mm hb<br>