... double layer and five-layer soft tubes, classified into the transparent tube, white tube, pearlized tube, pearlized white ... tenacity, high penetration resistance.)The useful of tubes:1).D13mm tube: suitable for sample cream and giveaway2). D16mm and ... oil packaging3). D22mm and 25mm tubes: suitable for eye essence, hand cream, lotion, cream, washing foam, personal care products, household products, ...