Item specifics: Powerful plunging action Clears Drains Quickly & Easily without the mess Clears Toilets， Bathtub， Showers， Sinks， drains Clears Away tough blockages without harsh chemical Diameter: 17cm of the big plunger，6cm of the small plunger. Two interchangeable plunger cups easily screw on for large or small drains. This unique plunger features a powerful compression chamber that provides extra power without extra work.Package Included: 1x Drain Buster 2x Interchangeable plunger heads