Black Permanent Marker 1,long lasting and waterproof 2,conform EN71,ASTMD4236 3,OEM customer' logo 4,felt fiber nib Black Permanent Marker 1, We ... are specialized marker of pens manufacturer,owning well-trained R&D ... by totally new PP material 5,Alcohol based cleaners will remove ink from non-porous surfaces6,Writes on most of non ...