Size:4.4 Inches x 10.2 Inches<br>OnGuard's toughest U-Lock has an equally tough name, the Brute. Teamed up with our new ultra-hardened steel shackle the Brute is one formidable lock. Equipped with our M-cylinder locking mechanism, this Brute of a lock can withstand up to 10 tons of pull force. On top of all these great features, OnGuard also includes 4 laser cut keys and 1 light key for night time use. No more searching or having to go back to the dealer and wait 2 weeks for new ones to show up. What this all adds up to is quite simply the finest, most secure U-Lock on the market. The new Brute is ready to send the bad guys packing.