Nissen solid paint markers are solid sticks of paint protected by an unbreakable plastic case. The plastic case prevents the paint from drying out so it always writes easily and smoothly. Marks on metal wood plastic glass cardboard tex-tiles etc. Writes on any surface: rough or smooth wet oily or dry - even marks under water. Marks won't run and are permanent so they won't chip peel fade or rub-off. Available in standard (approximately 5/16 wide line) and jumbo (approximately 1/2 wide line) versions.