Cylindrical lipgloss tube with window. The glossy matte black surface of this lipgloss tube is smooth and comfortable, which gives a classic and high-end impression to customers. This 10ml lipgloss tube with window has 2 characteristic designs: 1) double bottle structure with a slim window on the outer bottle, so that clients can see the formula and shades inside easily. 2) If asking for a heavyweight tube, we can add extra weight by iron block interior of the cap.