Puppy Bumpers are certainly an innovative design for puppy safety.
Puppy Bumpers are lightweight, stuffed, fabric donut shaped rings that are slipped over a puppy or small dog's head. The Bumpers then act basically as a 'stopper' so the small dog cannot slip through the gaps in a fence or railing.
What a great idea for using on balconies, decks and backyards. The Puppy Bumpers are available in 2 sizes and in various stylish fabrics for about $25.