25 #0 (POLY) 6.5″ X 10″ (usable space 6.5″ x 9.25″) Bubble poly bubble mailers lightweight padded mailers made from a durable, moisture resistant, multi-layer blend of polyethylene film. cushioning bubble material for added protection. Durable and moisture-resistant, with exceptional puncture resistance, tear strength, and cushioning performance. tear strip opening system. Self-Sealing (just peel-n-seal). keeps contents secure and tamper -evident and easy to use New smoke free and pet free home