The product is a 10 pack of SmartBuy Blu-ray BD-R dual layer recordable discs. Each disc has a capacity of 50GB and can be written at a maximum speed of 6x. The discs come in a spindle/cake box packaging and are labeled with the SB logo on the top surface. Manufactured in Taiwan, Province of China, these high-quality discs are ideal for recording and storing large amounts of data on Blu-ray drives. Perfect for use in personal or professional settings, this product offers convenience and reliability for all your recording needs.I opened them and they don't work with my BluRay device, so I'm selling all 10 of them.