What is. A piece of plastic that fits in a vacuum cleaner that costs the same as a small vacuum cleaner. Since there is no alternative, I think this is the only option.
Both original rubber tracks have failed on my Dyson Cinetic Big Ball Animal. The replacement I bought seems to be holding up so now I have to buy the other side.
I recently bought a used Dyson Cinetic Animal vacuum and all the ball housings were worn, cracked and in poor cosmetic condition. This was the only screw that allowed the sphere body to be removed and replaced and repaired to appear in the best condition. A new screw was included. The ball shells are real and made in Malaysia.