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 each is, and then choose the appropriate bottle cap.
Made of new PE material, good heat resistance, no pungent odor.
PE material, good flexibility, good fit and good sealing.
Multi-layer leak-proof sealing ring, watertight and airtight.
Simply push it down into the bottle and put the cap back on top.