Features: Conform to human engineering pen design, compact and lightweight for theshapely and smooth lines, you can create a beautiful work. Anti slip soft pen handle, lightweight, with short distance between handle andpen tips, suitable for delicate detail painting, and can provides long time using. Suitable for woodworking, leather, furniture and crafts gourd pyrography. The diameter of tip mounting hole is 1mm, with m 3 screw, 7mm hole pitch. Handle diameter is 18 mm, and the diameter is 20 mm when put on insulationanti-slip sleeve, 125mm length. The pen is made of high temperature resistant insulating bakelite, and theanti-slip sleeve is made of high temperature resistant silicone. Cable length 110 mm, copper core multi-strand flexible cable 1.5 square, totallength 125 mm.