EcoSwift 1000 #0000 4x6 Poly Bubble Mailers Padded Envelope Shipping Bags 4 x 6 EcoSwift 1000 #0000 4x6 Poly Bubble Mailers Padded Envelope Shipping Bags 4 x 6 Dimensions: 4" x 6" Usable Space: 4" x 5" Lined with bubble wrap for protection. Self-sealing, peel and stick, adhesive keeps contents secure and tamper proof