EcoWrite Assorted Writing Essentials (22035) Dry erase markers: made of 79% recycled Material, quick drying, low odor, Easy to erase with a dry cloth and non-toxic (conforms to ASTM D-4236 standards) Fluorescent highlighter pens: made of 76% recycled Material, chisel tip for broad highlighting and fine underlining, super-bright fluorescent ink, and non-toxic (conforms to ASTM D-4236 standards) Permanent markers: made of 79% recycled Material, writes on most hard to mark surfaces, tip will not fray before the ink Supply is exhausted, water/fade proof, and non-toxic (conforms to ASTM D-4236 standards) Gel pens with rubber grip: made of 40% recycled Material, ideal for arts, crafts, scrapbooks, card making, smooth ink flow glides as you write, soft rubber grip for extended use comfort, and non-toxic (conforms to ASTM D-4236 standards) Retractable ball point pens: made of 75% recycled Material, writes smooth and clean every time, rubber grip for comfort and control, retractable and refillable, and non-toxic (conforms to ASTM D-4236 standards)