Hook for Ivar (Ikea)

The hook fits snug on the horizontal side rails of the IVAR shelving units from IKEA.Can be attached with or without a shelf mounted on the other side.Fits snug to avoid accidental detachingNo mounting hardware requierdVery strong when printed solid (>5 perimeters)No supports neededNote: some older versions of the IVAR shelves have thinner side rails, the hooks won't have a snug fit on these. (worked on recently bought shelves, but not on a set from before 2000)