Oasis 12 diameter Dog-Catcher has an open center design that makes it fly through the air differently than solid flying disks. Easy grip edge and light-weight ring-style design make this a disc that dogs of all sizes can play with. The unique open-center design allows for slower flight speed that moves with more drift. The dog-Catcher is ideal for training young dogs for excercising out-of-condition overweight dogs and for playing with older slower moving dogs All materials in bothth e products and the packaging card are recyclable. 12 diameter - available in assorted colors.