Abdos Cryo Coders are designed to fit onto the top of 'Abdos' skirted foot externally threaded cryogenic vial closures. Made from HDPE, these coders provide a simple way to quickly identify specific vials visually, which helps to simplify inventory maintenance. Key Features & Benefits Quick Identification: Provides quick visual identification of specific vials. Inventory Management: Simplifies inventory maintenance. Color Options: Available in a wide range of colours (White, Blue, Red, Yellow, Green) for easy categorization. Compatibility: Designed to fit Abdos skirted foot externally threaded cryogenic vial closures.