Posca PC-17K markers have a 15mm (about 5/8") wide square tip.
Excellent for signs exposed to the weather. Great for temporarily marking up glass windows. Popular with surfboard painters. Auto Dealers love this marker for writing advertisements on windshields.
Contains Non-toxic water-based paint. Mark on metal, wood, glass, plastic, plaster, canvas and more.
Marks are removable from non-porous, sealed surfaces like glass, plastics, and most chalkboards.
Opaque, water-based acrylic paint is non-toxic and acid-free. Odorless, light-fast, Xylene-free, lead-free and waterproof when dry. Will bond permanently to wood, clay pots, posterboard, plaster and other porous materials.