Material : Durable Paperboard with Plastic-Lining Interior Leak-Resistant : Yes Self-Standing : Yes Self-Locking Top : Yes Biohazard Markings Included : Yes Flat-Folding : Yes Categories: Biohazard Containment, Safety Products & Dispensers Material : Durable Paperboard with Plastic-Lining Interior Leak-Resistant : Yes Self-Standing : Yes Self-Locking Top : Yes Biohazard Markings Included : Yes Flat-Folding : Yes Categories: Biohazard Containment, Safety Products & Dispensers