Size Diameter Compatible Launcher Suitable Breeds
S 2.0" Mini Chihuahua, Dachshund, Pug
M 2.5" Pocket, Pro 18, Pro 25 Jack Russell, Spaniel, Collie, Labrador
L 3.0" Pro 26L Labrador, Akita, Boxer, German Shepherd
XL 3.5" None Great Dane, St Bernard, Mastiff, Newfoundland
XXL 4.0" None Fun to throw and kick so all of the above!