definiens: means reagents or reagent components, including labeled and unlabeled oligonucleotides ( such as, without limitation, primers and probes ) used in or useful for Real Time PCR, and the polymerase used for the Real Time PCR that ASI supplies to [COMPANY] as the packer of Cartridges pursuant to the Cartridge Packing Agreement for incorporation and use by the USPS in the 8io - Threat Agent Detection Systems of which Products are a component, and that ABI manufactures itself or that, on or after the date that Second Generation Products are fully substituted for initial Products as the Products that are manufactured and sold to the USPS pursuant to the Distributor Agreement, ASI sources itself or selects and deSignates as the Materials to be included in Products . Without limiting the scope of other materials excluded from the definition of ABI PCR Materials, the Parties understand and agree that specifically excluded from ASI PCR Materials are reagent and reagent components ( but not the polymerase, which in all cases is included in ABI PCR Materials ) that [COMPANY] has obtained from the supplier or suppliers used by [COMPANY] for such materials as of the Effective Date, even if ASI obtains such reagents and reagent components from such suppliers or other suppliers and supplies them to [COMPANY] pursuant to the Cartridge Packing Agreement, except for such of such reagent and reagent components, if any, as ASI specifically selects and designates to be included in Second Generation Products