Replace worn, rusty or rounded brake pad retaining hardware with theGorilla Brakes Formula Cura 2 / Cura 4 Brake Pad Retaining Pin Kit. This stainless steel retaining pin kit is designed forFormula Cura 2-piston andFormula Cura 4-piston disc brake calipers, making it the perfect add-on when fitting new brake pads or refreshing your brake hardware.