ABUS 72/40 Aluminum Safety Padlock Blue Keyed Different - Long Shackle (3") Standard 6-pin chrome plated cylinder for maximum weather ability and key differences Available: KD, KD, M and GMK in 9 bright colors for easy identification Custom keying, laser engraving and charting available Accepts American PTC-12 & PTC-14 cylinders Laser Engraving Available