These 12 x 23.5 Self Seal Bubble Out Bags protect fragile items without tape. These 12" x 23.5" Self-Seal Bubble Bags with 3/16" bubbles are discount bubble bags and protect the contents during storage and mailing. These self seal bubble wrap bags are used for shipping/storing computer parts, ornaments, trinkets and many other applications that protect your items from damage in shipping, 150 per case.