The product is a set of 12 vintage Sylvania Blue Dot Flash Bulbs, specifically the model 25B Flashbulbs. These bulbs are made by Sylvania Electric in the United States and are designed for use with cameras. They would be ideal for photography enthusiasts looking to capture images with a retro aesthetic, as they offer a unique vintage look that is difficult to achieve with modern flash bulbs. These bulbs would be a valuable addition to any collection of vintage camera accessories.
eBay