Dimension: 133x133x51mm（5.24 x 5.24 x 2 inches），81 Holes. Scope of use: It’s used for storing 1.5-2.0 mL cryovials. WATERPROOF: Coated with film, waterproof and ice-proof and capable of being frozen repeatedly. LOW-TEMPERATURE RESISTANT: Durable paperboard, suitable from -196℃ to 121℃. BROAD APPLICABILIT: Versatile, suitable for the storage of freezing tubes and centrifugal tubes. CUSTOMER SERVICE: If you encounter any problem, please don’t hesitate to contact us. We will reply your e-mail in no more than 8 hours since we receive it, and we will help you solve the problem as soon as possible.