Need an alternative to those expensive wheel caps for your Prius"v." I measured out the center of my 16 inch OEM wheels and the Genuine Toyota ones that I purchased for $15 each. These are just the right size, and are available in both black or white weather resistant Nylon 6. They paint easily with paints like Krylon Fusion of Rustoleum paint made for plastic. GRAINGER APPROVED VENDOR Hole Plug,Hole D 2 1/2 In,Blk,PK25 - Hole Plugs - 1ELY4|1ELY4 - Grainger Industrial Supply GRAINGER APPROVED VENDOR Hole Plug,Hole D 2 1/2 In,Wh,PK 25 - Hole Plugs - 1ELY5|1ELY5 - Grainger Industrial Supply Unfortunately, you have to order them in quantities of 25. But the price is cheap compared to Toyota. I have a Grainger account. I prefer to order at the Lowe's Pro Special Order Counter, however, because they ship to my home for FREE.
You can buy them on ebay for much less than the dealer pricing. By the time you add the cost of paint and labor time even it is free, it will be close to $20 with the looks not comparable to OEM .
Go to Home Depot or Lowes and look for knockout plugs for circuit breaker boxes. They are about $1.20 ea for the 2" plugs, they pop in nice and tight and I like the look.