The Ballard Belt has a changeable buckle. You simply unsnap the belt on the back side, slide the keeper and the buckle off, and replace it with the new one. The keeper fits in between the two snaps and is held in place there. Please email us if your belt keeper has broken and we can send out a replacement.The Delridge Belt has a Clamp style, Slider buckle that can be replaced by pulling up in the tooth plate or the small loop on the end of the belt.