  Although the terms ocean and sea are often used interchangeably, a sea is generally considered to be smaller than an ocean. One definition of ocean is: a great bod â¦ y of interconnecting salt water that covers 71 percent of the Earth's surface.
Sharpie brand permanent markers. A permanent marker or indelible marker is a type of marker pen that is used to create permanent writing on an object. In general, the ink comprises a main carrier solvent, a glyceride, a pyrrolidone, a resin and a colorant, making it waterproof.
Pigma Micron Brush Marker Pens. Capable of drawing very fine lines or broad strokes depending on the pressure applied. Waterproof, chemical-proof, and fade-resistant, will not smear or feather when dry. Use for graphic art, calligraphy, rubber stamps, fabric projects, awards, and certificates. PITT Artist Pens are famous for combining a modern brush nib design with a tradition of India ink. India ink offers artists odorless, permanent, waterproof, lightfast inks with 58 vibrant colors.