Oriel Heavy duty hydraulic thumb to suit a Kamatsu PC 170, kebelco SK 170 or Volvo EC 160 with a hydraulics quick coupler. Oriel Hydraulic thumbs are made from 100% hardox steel. Oriel are the only attachment on the market that offers a 2 year warranty. We stock both new and used attachments. We also supply shipping. For more information call John eight one five three four eight two one two two