The Globe Scientific 513051B microscope slide mailer is made of polypropylene for durability and holds two, 25 x 75mm (1 x 3") microscope slides (sold separately). The box contains 100 mailers. The blue color mailer has a slotted interior to hold the slides securely apart and a tight-fitting snap closure to help protect the slides from shock and damage.
Globe Scientific manufactures labware and supplies for use in clinical, research, education, veterinary, and industrial laboratories. The company, founded in 1983, is headquartered in Paramus, NJ.