Just watch a video on one of the turning catalog's web sites on how to remove worn out Velcro from a sanding mandrel. They cut it off with a skew. I've used a knife and razor knife, but if the rubber is still in good shape a little heat from a cigarette lighter will soften the adhesive and the Velcro will peel right off. It is better to pick it off though, because the sticky glue can be hot.