Dura-Gold Pro Series K-Block Sander Firm & Flex Hand Sanding Block Kit, 9", 16" and 24" with Hook & Loop Backing and PSA Sandpaper Conversion Adapter Pad, Automotive Marine Paint Prep Sand Woodworking

I work in Autobody as a prepper painter and figured I’d try these out as I’m always looking for new tools and I’ll be honest they’re great! Haven’t tried the big daddy yet but these things are great if your blocking long flat panels.

Blocks came out of the box bowed and with the Velcro peeling right off two of the three blocks the one that didn't have peeling Velcro is the one that has a bend in it...

I like it because it flexible

these are good sanding blocks

I bought these because the durablocks that take adhesive paper weren’t working out. Water was getting in between the block and the paper, and reapplying new paper to a wet block wasn’t quite working.The hook and loop is much easier to use while wet blocking.