The Spherotech – Dr. Jeff WANG Laboratories are manufacturing Spherotech, Spherobeeds, Rainbow Callibration, kits and reagents distributed by Gentaur. Our reagents are RUO, for Research use only, ISO9001 certified. Some are FDA approved or ISO13485 for IVD (In Vitro Diagnostics). To buy Spherotech, Spherobeeds, Rainbow Callibration, laboratory tools and products, please contact your local Gentaur office for next day or next week delivery. Spherotech – Dr. Jeff WANG Research support team in Gentaur will send you the MSDS, Protocols and Safety Datasheets of all Spherotech, Spherobeeds, Rainbow Callibration, items. We offer money back guarenthee on all orders shipped by Gentaur. To order Spherotech – Dr. Jeff WANG products send the catalog number, size and your price request by email. We offer a free selection audit if you are not sure what kit exactly you need for your valuable lab samples.