For Manufacturer: Olympus®Material: ePTFEFor Model(s): ManyAO-ERP P/N: 501006 *ERPI 501 Series Biopsy Channels are Etched in the Bending Section with Tetra-Etch, for the best possible adhesion of your glue. They are also wire wrapped in the Bending Section to provide strength and stability from kin..