Non-chemical cleaning mechanism with proprietary lint-free cleaning strand, using simple pushing motion to engage tool, cleans SC, ST, FC and E2000 connectors of contamination including road dust, skin oil residue, salt water residue, graphite dryer lint, hand lotion, and more 5-pack for 2.5mm connector cables, clean fiber optic ferrules for both APC and UPC type connectors Audible CLICK to alert the user when tool is fully engaged, clean over 500 fiber end-faces per unit Tip extender to 208mm for hard to reach connectors Crush resistant to over 250N