These are the type which grip the back of the lid/dustcover. An internal spring supports the cover when open.
These are not an exact replacement fit for the original hinges because the section that grips the lid is slightly narrower than the original, (please see photos for dimensions) however they will work fine.
If you are wondering if they will fit another make or model, or need the type which have a single 'blade' which engages in a pocket on the rear of the lid, please ask us before buying