Kemet-ESD-SR-Snap-On-Ferrite-Cores-Sample-Kit-27pc-Kemet-EMI-ENG-KIT01-This-sample-kit-contains-27-pieces-of-EMI-snap-on-ferrite-cores-in-a-various-sizes-The-cores-are-fast-to-install-&-simple-to-use-&-are-designed-for-use-with-round-cables-Kemet-27pc-ESD-SR-Snap-On-Cores-Sample-Kit