You need a label on a glass cabinet door, a crate number on plywood, or a serial tag on a steel frame – and the gel pen you tried first is already smudging. The Artline 30 Permanent Marker was made for surfaces that eat cheap ink alive. The 5 mm chisel nib gives you a clean line or a broad stroke without dragging. It takes to glass, steel, cardboard, wood – porous and non-porous alike. The aluminium barrel means it won't crack or split when it drops off the workbench, and the acrylic fibre nib holds its shape through real use. Grab the assorted pack so you've got the right colour on hand before you need it