ITEM NAME:20pcs 5ml Graduated Cryovial Cup Specimen Sterile Container with Screw Cap Description: - Plastic graduated tube with screw caps for laboratory test - Ideal for samples, Essential Oils, Fragrances, Dyes, Model Paint, Crafts, Beads, etc. - Switching from glass cylinders to Globe’s plastic equivalents will greatly reduce breakage and the potential for injury - It can be stored at low temperature ( Approx. -180 ℃ ), convenient, good sealing performance - Material: Polypropylene plastic - Main Color: Transparent Specification: - Mark: 1ml 2ml 3ml 4ml 5ml - Measure: 5ml - Depth: Approx. 5.9cm - Diameter: Approx. 1.6cm Package Included: 20 x Cryovial Test Tube.(20 x Cryovial Test Tube. Specification: - Mark: 1ml 2ml 3ml 4ml 5ml. - Switching from glass cylinders to Globe’s plastic equivalents will greatly reduce breakage and the potential for injury. -180 ℃ ), convenient, good sealing performance.