Pica Replacement lead set BIG-Dry FOR ALL white

Rectangular leads with a cross-section of 2 x 5 mm, 150 mm long, each with 12 leads in a case, universal ? for almost all materials, whether dry or wet, smooth or rough, dusty or oily, light or dark, can be wiped off smooth surfaces with a damp cloth, does not penetrate when coated with dispersion paint, protect red and white from temperatures > 30°C