This is a holder for cryovials. It features a cryovial rotation prevention function, and when a cryovial is inserted into each hole, it locks in place, allowing for one-handed opening and closing of the cap. In addition, the spacing between the holes is wide, and each hole is numbered, making it easy to identify and handle the vials. There are no noticeable scratches or stains as it was not used frequently, but please understand that this is a used item stored by a private individual. - Manufacturer: Nalgene - Model Number: 5030-0505 - Capacity: For 25 vials Thank you for viewing.