Low Priced Bubble Cushion Envelopes Interior Dimensions 4 x 7.5 Exterior Dimensions 4 x 8 Starboxes Pack of 250 bubble out bags with a self-seal 1/2 lip manufactured with 3/16 polyethylene bubble Lightweight to save money with packing materials while supplying total surface protection and cushioning Highly effective at padding and protecting smaller products in transit and storage with its thick air-filled bubbles Bubble bags offer a cost-efficient and time-effective method of packing your products for transit