CollectA GreyhoundCollectA Greyhound CollectA Model 88187 Product Dimensions: 11 x 2. 5 x 8 cm Age: 3 years and up Greyhounds are famously known as some of the fastest dogs on the planet, capable of reaching speeds up to 45 miles per hour! These sleek and graceful canines have a slender build and a deep chest, traits that help them achieve their remarkable velocity. Historically, they were bred for coursing game and later for racing, but they're not just about speed.