This replacement pump core is an essential accessory for water flossers, providing consistent water pressure for optimal cleaning. Made from durable engineering plastic, it resists wear and tear. Its user-friendly design makes installation simple, catering to individuals looking to upgrade or maintain their irrigation devices.Features-Color:Transparent-Material:Engineering plastics-Size:15.70X2.90X2.90cm/6.17X1.14X1.14in-Water inlet outer diameter: 4 mm-Powerful water pressure: the dc highpressure pump core delivers strong water jets to effectively clean between teeth and improve oral clean -Transparent build: the clear plastic design offers a , allowing users to monitor the pump's functionality during use-Durable engineering plastic: made from plastic materials, this pump core is built to withstand regular use and provide longterm reliability-Compact design: its small size and lightweight construction make it easy to carry, ensuring professional use anywhere-Extended pump core lifespan: the brushless pump minimizes wear, providing a longerlasting solution for irrigation systemsPackage list: 2 x tooth washing pump cores