3 LAYER PROTECTION FOR PEACE OF MIND: Molded from high impact polypropylene, the temporary travel urn is designed to withstand the rigors of both air travel and mailing. The plastic bag and 100% effective zip tie are provided to directly hold the ashes. Place the twist-tie sealed plastic bag in the black urn and then place the urn into the white cardboard box. This provides three layer peace of mind for travel or temporary use. This design has been used by funeral homes and for 40 years.