Item Name: Valve Dental Foot Switch Valve Dental Chair Accessories Dental Chair Square. Description Function: Air control of turbine hexagonal water pressure valveApplicable object: adultsQuality: high quality and durableType: Dental medical equipment accessoriesPacking: 1 piecePackage Included:1* piece of dental chair accessories notes:Product color may vary slightly from the picture due to different lighting and screen settings.Due to different manual measurements, please allow slight size differences. Thanks!