This is a product with bubbles. There are bubbles in it from the time of purchase. Sold as a set of two. Please check the size in the photos. The height is approximately 3 centimeters. It is unknown which workshop the product is from. Although it has been used infrequently, please understand that this is a used item owned by an individual before purchasing. There is no dedicated box, so it will be packed with air cap, etc. Please note that recycled packing materials may be used.