Every click of the button compresses air inside the chamber

or shoe soles

305 x 215 mm

It’s transparent at first

it is enough that you mix 50/50

viking element 1 graphite writing pencil hb GBR Every click of the buttonThe Element 1 is a standard HB pencil with a matte black finish, built around a break resistant graphite core bonded into a straight grained wood casing so it sharpens evenly without splitting. The HB grade lands in the middle ground most everyday writing and sketching calls for: dark enough to read clearly, firm enough to hold a point through normal use. It comes presharpened and ready to use. Specifications Grade: HB Core: break resistant graphite