Just plug and use, no need to remove tiles or drill. Suitable for drainer with hole diameter between 3.7cm and 5.2cm.< /li> 360 degree drain valve, large volume and fast emptying. Essential and practical tool to protect your kitchen, bathroom, garage, basement and toilet from an odor unpleasant. Anti-corrosion, acid and alkali resistant, great sealing effect. Size: 6.5*5.5cm. Number of shipments: 2 pcs.