Watch this YouTube video. Instructions Open the buckle. Please do not use (as leverage pivot) the rod which is indicated in the sketch. Insert the driver to the slot of the holding plate, and lever it down to release the holding plate. Slider buckle is released and can be shifted to desired position. Do exactly the opposite to close the buckle, using the same slot and pivot, this time by lifting the screw driver up till the plate is locked completely. How to adjust your stainless steel band