165mm x 165mm Metallic Red Padded Bubble Envelopes (Qty 100)1 2 day delivery as standard on this product Metallic Red padded bubble envelopes come in 5 sizes. This red padded envelope measure 165mm x 165mm and this is the internal measurement. Measurements displayed are all internal. Measurements displayed are all internal. All of our bubble bags are made with 40% recycled materials making these a great choice for the eco conscious business.