Hinges made of stainless steel. Other technical features include: anti-bacterial treatment: no, anti-theft: no, through hinge shaft: no, color: white, for top mounting: yes, material of hinge blades: stainless steel, material of hinge base/rosette: stainless steel, material of seat/lid: thermoset, with soft-closing mechanism: no, with lid: yes, center distance screw fixing: 105mm, buffer with side guide: no, hinge foot fixing on seat: other, WEEE registration number: 62249976, removable for cleaning: no.