Thincol Triangle Sponge Sandpaper – 4Pcs, 6 Holes, 5mm Thick, Grit 300-400#, For Metal, Plastic, Power Tools – Phone Shell & Paint Polishing

About This Product

This sponge sandpaper is a neat alternative to regular paper sheets.

It's a triangular shape with six holes, about 3.

5 inches on each side and 5mm thick.

The grit is 300-400, which is medium-fine – great for smoothing surfaces, prepping for paint, or polishing.
Inside it's a sponge structure, so it conforms to curved or irregular surfaces like phone shells, car panels, or rounded edges – something flat paper just can't do well.

You can use it wet or dry, and it's compatible with both pneumatic and electric polishers.

One piece lasts as long as many sheets of regular sandpaper because it resists clogging and doesn't shed grit easily.

Great for hobbyists fixing phone cases, model builders, or anyone doing touch-up paint work on metal or plastic.

It's reusable and doesn't leave deep scratches like coarser papers.

Simple, effective, and way easier to handle on tricky shapes.