Chisel tip markers allow you to create lines in various widths with a resilient tip that won't fray with useWrite smoothly on practically any surface including paper, cardboard, metal, PVC piping, concrete walls, plastic containers and ceramic tilesAvery permanent markers won't become dried out for up to half an hour without a capThese permanent markers last up to half an hour without a cap and feature a low-odor formula that is ACMI certified and conforms to ASTM D4236 for safetyWear and water resistant ink sets in quickly and makes these the best markers for writing on boxes, marking sports gear, labeling plastic containers and more