The 1L lid is suitable for barrels with an inner diameter of about 7.8-9 cm and an outer diameter of not more than 10.8 cm. The 4L lid is suitable for the inner diameter of the barrel mouth at about 13.3-14.8 cm, and the outer diameter of the barrel mouth does not exceed 16.8 cm. This spindle adopts universal bearing, automatic adjustment when rotating, good stability. Beautiful and generous shape, reliable quality, simple assembly, low noise, high precision, long life. The stirring cover is made of Metal and Plastic, with good sealing, corrosion resistance, wear-resisting and anti-penetration, and the excessive wheel is used at the closing of the slurry cover and the lacquer tank, which makes the lacquer tank seal without deformation and saves effort. Suitable for all kinds of paint mixing machine stirring all kinds of paint masterbatch, sealing leak-proof ventilation hole is not blocked, pouring paint mouth is not easy to leak paint, smooth opening, easy to grasp the flow of use, durable. Specification: Material: Metal+Plastic Size Chart: 1L: 20cm/7.87inch 4L: 30cm/11.81inch Package Includes: 1 Piece Car Coating Color Mixer 1L 1 Piece Car Coating Color Mixer 4L Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!