Designed to fit tubes up to 13mm in diameter; 75 tube capacity; Includes 10 holders (tubes or vials not included). Great for storage, transport and organization. Made from lightweight yet durable high density waterproof, non-scratching, anti-rattle, vibrant blue foam material with a strong black textured foam top layer for added protection. Note: Avoid halogens, strong oxidizing agents, benzene, petroleum ether, aromatic and chlorinated hydrocarbons. Easy to clean (can be washed and rinsed, top rack dishwasher safe). Measures approximately 11.7" x 4.1" x 2".