These are my two greyhounds Syd and Jill Syd the fawn one. He is one of the bigger boys I have seen measuring around 70CM tall (the top of his back) and 38KG. Jill is a little smaller measuring 62cm and 28KG.
We are only fostering Jill until she is adopted and then we will get another dog to foster.
I can't recommend these dogs enough, they are just amazing animals. The outlay for a retired dog is only $350 which includes a lead, all vet injections / inspection, microchip, etc. They generally are 2 - 4 years old when they are in the adoption process so they are still young and playful.