This set of 3 x 3 Gotoh SD90 locking tuners are in the traditional Kluson/Gibson style design. To preserve the vintage look of the tuners we opted for Gotoh's Magnum Locking system without the thumbscrew operation, instead these use locking caps on the tuner posts, simply thread the string through the tuner post hole and begin winding, the locking cap will automatically engage at the correct tension locking the string in place, you can then bring the string up to tension as normal (to release simply detune the string until the cap releases, or if the string is broken insert a coin in the locking cap slot and release it from the string). The press fit bushing fits a 11/32" hole (8.8 mm) in the headstock to secure the string post. Please note the colour of the SL button is closer to a Jade Green style tulip button, it is not cream coloured.