Freezing Vials are your best choice for based on the high quality and special features.
*Manufactured from durable PP and PE
*Available with 4 volumes: 0.5ml, 1.5ml, 2.0ml and 5.0ml
*Interlocking cap design ensure exact fit and will not absorb water or other contamination
*Part of the tube has mold engraved scale experimental process of recording easy
*Closures containing silicone gasket can avoid liquid leakage
*Screw cap for one-handed operation
*Temperature range: -196 ℃ -121 ℃