Uses the best steel cable and the most secure locking mechanisms Personal ed codes: four digits, 10.000 combinations User-friendly, setting-easily, no need to carry keys U-shaped shackle with solid and safe features which is reluctant to detriment PVC coating helps protecting the lock surface scratching, rusting and corrosion Various kinds of fashion designs / colors can be ed, also customer's design and logos are welcome Goods have been obtained national patent and approved by GS/T黺, CELAB, ISO 9001, also have passed the test of PAHS in Europe