Azzota® 1.5ml Microcentrifuge Tube, High-clarity Polypropylene, 500/pk 1.5ml Volume Microcentrifuge Tubes (Non-sterile)Package of 500Autoclavable (121’C/15 psi), Temperature range: -80’C to +121’CLock cap,USP VI grade PP material, free from heavy metalHigh-clarity polypropylene, Endotoxin: 0.1EUDNase/RNase freeMax RCF: 30000xgClear graduations and frosted marking area Sold and Shipped from the US. Other Models available on our store, contact us for more info! Purchase with confidence, unlike our some of our competitors, all our products come with a warranty and complimentary customer service and technical support!