The Evolution series 4 STD is a maximum security u-lock with a patent-pending oval crossbar design. Its 14mm MAX-Performance steel shackle and double deadbolt locking mechanism provide additional strength to resist cutting and leverage attacks. The Evolution series 4 has passed attack tests from both Sold Secure and ART which are independent European testing agencies. The lock includes three keys for the disc-style cylinder. Two keys are “I” keys and one has a high intensity LED bulb for convenient, easy unlocking in the dark. The innovative, patented EZ-Mount transportation system is included with the lock. The Evolution series 4 STD is 4” x 9” and has an anti-theft protection offer of $2,250.