The material: outside is PE, middle is aluminum, inside is PE. Laminated tube is the 5layers tube

If thickness is 28s(0.28mm), aluminum is 20um, if thickness is 25s(0.25mm), aluminum is 12um.

Cap: different screw cap, only for the toothpaste tube is small flip cap.

The orifice: 13mm and 19mm is 5mm, include 22 till 50mm is 6.5mm.