EASY TO SET: The long combination lock allows you to set your own combination by simply flipping a "SET" switch located at the bottom and back. The 4 number wheels are exposed on the front and back, making it much easier to turn, even when wearing gloves. Easy to Read: Unlike shiny chrome dials, these long shackle locks feature a good contrast of white numbers on a black background, which is very easy to see even in dimly lit areas. Most combination locks on the market have their setting mechanism exposed outside, in which accidental code setting may occur randomly in daily use, when it is carried in a bag or someone plays with the code lock and makes it unusable. In 2021, the lock adopts an anti-tamper design by adding a black protective cover to the reset button. No more worrying about unknown code changing. APPLICATION: The locking arm is 57mm when closed. The longer clasp provides more room to maneuver, making it easy to thread longer or thicker locks or chains. The long shank