Odorless. Vibrant ink. Quick drying. Non-rolling cap adds convenience. Barrel color indicates ink color. Bright, vivid color provides maximum impact compatible with photocopying machines. Great for books, reports and computer printouts, compatible with photocopying machines . Durable tip lasts even after highlighting on rough surface. Chisel tip allows two lines widths broad line for highlighting fine line for underlining. Non toxic. Performance Guarantee: We guarantee all of Bazic Products against defective performance due to materials & workmanship. Please contact our customer service for replacement. Conforms to ASTM D-4236. Try other great Bazic Products. We offer a wide range of stationery products for all your school and office needs. Made in China.