With its 30 mm of size, Grog Quickflow 30 EPT is a chisel tip made of high output polyester fibers. Native tip for Grog Cutter 30 marker, it delivers the right flow for top-notch performances. Quickflow 30 EPT is born to work in combination with Grog Xtra Flow Paint, but it can be used with your favorite ink too. 2 Units packing.