cleaning ball 1.material:good quality natural rubber 2.density: medium and hard 3.size:DN125mm,DN150mm

sponge ball(cleaning ball) for cleaning the rubber hose/end hose/pump/tubes,and etc.

size:2'/3'/4'/5'/6', for your needing.

Anti-corrosive, not easy to distort, not easy to embrittlement

concrete pumping parts---5" sponge ball (Cleaning ball)