165mm x 165mm Metallic Silver Padded Bubble Envelopes (Qty 100)1 2 day delivery as standard on this product Metallic Silver padded bubble envelopes come in 6 sizes. This Silver padded envelope measure 165mm x 165mm and this is the internal measurement. We can make bespoke size coloured padded envelopes and also print onto them. For more details please contact us on 01273 486026. Measurements displayed are all internal. Measurements displayed are all internal. All of our bubble bags are made with 40% recycled