It runs about $10 at your local Sally's Beauty Supply. It is made with strong bristles that will remove all tangles.
If you aren't happy with the width of the teeth, there are plenty of YouTube videos that show how to modify your brush.
Not only are
paddle brushes great for blow-drying stretched hair, they are also good for detangling. Since the pad of the brush is soft an filled with air, it makes detangling a breeze.
The absolute best tool for detangling is free of purchase and is always with you - your fingers. Finger detangling leads to less breakage and frustration. I always start with this before I use any tools.