So these are replacement cork balls for Puff Billiards - that fun French game also known as Billard Nicolas where you use very light balls and play on a special table. The set comes with 4 balls, each about 14mm in diameter, which is perfect when you've lost some over time (and let's be honest, these lightweight cork balls tend to disappear easily). The quality is really good - they're made in France with proper craftsmanship, so they're consistent in size and weight, which is important for game play. The cork material gives them that unique lightweight feel that makes Puff Billiards different from regular billiards. Just a heads up - these are specifically designed for proper Puff Billiards tables, so they might not work with other boards or imitation sets. If you have a genuine Puff Billiards table though, these are exact replacements that will keep your game going. They come in that simple set of four, which is usually what you need to get back to playing. The price might seem high for just four small balls, but that's because they're quality components imported from France - not cheap imitations. For serious Puff Billiards players, having spare balls on hand is essential, and these are the real deal.