This microscope slide mailer is designed to securely hold and transport two standard 25.0 × 75.0 mm (1" × 3") microscope slides in laboratory, clinical, and educational settings. The horizontal design maintains proper slide positioning and helps reduce movement that may lead to slide damage during handling or transport. Constructed from durable polypropylene (PP), the mailer offers strong structural integrity and resistance to common laboratory chemicals. The clear natural color allows for quick visual identification and easy labeling, making it well suited for slide transport, organization, sample distribution, and temporary storage within routine laboratory workflows.