Review on 🔧 DocaDisc 4.5 Inch Flap Disc (20 Pack Assortment) - 40 Grit Type 29 (10pc) & 80 Grit Type 27 (10pc) Professional Grade Abrasive Grinding Wheel & Flap Sanding Disc: Effective and Durable by Bryan Turner

I use a lot of 4 1/2" flap wheels, when I saw their price I thought they would last as long as it would take to put them on a coffee grinder but I figured you give you better try them.received them very timely and when i opened the box they did indeed look like they were made more expensive in the store.i put one on the car and was impressed if you have ever used a cheap one of these will the abrasive (sand) will flake off almost immediately and you can feel it hitting you but that wasn't the case with this product Durability, they last just as long as the branded ones.