3M Vehicle Sanding Block

There are 3 pointed prongs inset on each side tk secure the sandpaper. There is a slight concave curve on the bottom side for more control of whatever is being sanded. This helped me because I was sanding a car fender.

Got this to replace an old one that I’ve had for years. Works as intended

Right size and weight for the job

It's a simple sanding block. It works as it should.

I have been using these 3M sanding pads since 2017. Back then I could sand away for days on end with a single pad. I recommended them to anyone and everyone especially people who needed to work on guitars like me. The pads would fold and shape beautifully to the contours of the wood and their thickness was perfect to hold between your fingers. Unfortunately, and inexplicably, these same pads are now only lasting between 5 and 15 minutes before they are no longer useable. I am still using them for the same application and the same woods - even the US Swamp Ash(a very soft wood) I was sanding today was too much for them! I am not sure what is going on - whether 3M has had production issues, quality control problems etc. However, if this is now what 3M considers an acceptable standard then I will no longer be buying them as they are ridiclously overpriced for something that you have to throw away after 5 minutes! Not to mention the environmental impact of such a throw away product. Sorry 3M, you make some incredible products, but these are no longer one of them!