First use a ruler to measure the inner diameter of the bottle mouth, then measure the outer diameter of the bottle mouth, how many millimeters are they respectively, and then choose the appropriate bottle cap.
Made of new PE material, with good heat resistance and no pungent odor.
PE material, good flexibility, good sealing according to the aperture.
Multi-layer leak-proof sealing ring, watertight and airtight.
Just push it down into the bottle and put the cap back on top.