Specifications:Color: Red+BlackMaterial: Aluminum + PVCPackage Content:1 x portable security lockNote:Due to manual measurement, please allow 1-2mm measurement error.If there is any quality problem, please feel free to contact us, we will promise to refund or replace.How to use: 1.TO SET YOUR OWN COMBINATIONA.The digits are present at 0.0.0B.Push the reset button in and hold.C.Now set your own combination.D.Release reset button. Your personalized combination is now set. 2. TO LOCKRotate 3 dials to radom digits to lock.3.TO UNLOCKline up your own combination and push rest button to unlock.Attention: It's same when unlock and set password combination, so please aware don't touch the password wheel when you unlock your cable lcok