String spacing: 10.5mm. These are parts for top-loading. The plate is a side-less type and is secured with three screws. Three screws for attaching to the body are included. These saddles do not have an octave adjustment screw in the center, so the strings will not interfere with the screws. There are some minor scratches on the part of the plate that contacts the set screws, but overall it is in good condition.