A super cute and sturdy aluminum waterbottle cage for any bicycle. The convStay hydrated, and help out some very good dogs in the process.enient side loading feature makes it perfect for smaller frames too. We donate 10% of profits from the Very Good Dog (VGD) Cage to animal advocacy organizations that help very good dogs in need.  With cuter than ever faces and puppy paw details, these very good dogs are any bikes new best friend.