... (2inch) soft ,hard ,medium softDN80(3 inch) soft ,hard ,medium softDN100(4 inch) soft ,hard ,medium soft DN125(5 inch) soft ,hard ,medium soft DN150 ... (6 inch) soft ,hard ,medium softDN180(7inch) soft ... Brand Schwing, PM, Kyokuto, CIFA, Sany, Zoomlion, and so on DN125(5 inch) (Soft) Sponge Rubber Ball