Duck Brand Extra Cushion Bubble Wrap - Clear, 12 inches by 100 feet Not all bubbles are created equal! Bubble Wrap brand cushioning is a "pop" above its many imitators due to Barrier Bubble technology, a nylon layer that helps prevent air loss. Bubble Wrap provides surface protection and cushioning and conforms easily around items. The extra large 5/16 inch bubbles are ideal for wrapping your fragile items. The roll is perforated every 12 inches for easier handling. "If it doesn't say Bubble Wrap, it isn't the real thing!"