The 6615K Microflex is an armoured cable featuring 15mm overlapping steel shells that protect the inner steel cable making this a more secure locking option than a common cable while retaining the flexibility & convenience of the cable. Supplied with the new Snap Mount frame bracket for effortless mounting & removal from the bike.· 15 mm overlapping steel shells protect the inner steel cable· The steel shells & the supporting elements of the locking mechanism are made from special hardened steel· PVC-coating to prevent damage to the bicycles paintwork