Material: tube body is PE,cap is PP Diameter: from 13mm to 60mm Capacity:3ml-500ml Layer: 1-5 layers 1.Specification: diameter in 13, 16, 19, 22, 25, 30, 35, 38, 40, 45, 50, 55 and 60mm, with volume to be adjusted between 1.5g-500g.2. Classification: single layer, double layer and multiple-layer soft tubes, classified into the clear tube, white tube, pearl’s and colored tube; round tube, ...