wholesale 30oz 20oz magnetic lid magnet clear lids cover cars beer mug splash spill proof covers for stainless steel tumbler ye cup

features: 1. the push film can be taken off arbitrarily, which is very convenient for cleaning; 2. the push film can be automatically returned to the position, and the sliding feel is very good; 3. the switch lid can be operated with one hand and can be splash-proof, which is especially suitable for vehicles and other usage scenarios; 4. after the cup is filled with water, it should not leak when placed upside down; 5. the lid of the cup is semi-sealed, so that the cup has better heat preservation and cold preservation; product material: this product uses tritan+ food grade pp,