Alluninum with color of silver, golden, red, blue, etc. Heat insulation Light, soft, durable Packaging & DeliveryPackaging Detail:packed in cartonsDelivery Detail:within 10 days Specificationsbubble cushioned aluminized foil maileraluminized bubble bag/bubble envelope /bubble mailerThis product is made of metalized film with bubble linings, which is strong enough to prevent breach of the bags. ...