The Pocket Shark is made from a high impact polymer and features walls that are four times thicker than conventional markers. This means it's built for impact and will survive the meanest blows and roughest treatment imaginable. Plus, the screw on cap will stay in place and won't pop off like a regular marker and leak all over your clothes. Clip it to a shirt or coat pocket or carry in your purse, pack or briefcase. Felt tip pen.
Specifications:

Type
Size
Weight	1.70 oz
Range
Decibels
Repels
Approved By
Strength
Material	Polymer
Other Ingredient
Color	Black
Volt
Active Ingredient