ONGUARD Bulldog Medium DT U-Lock 7" shackle combined with 4' braided steel cable let's you lock bike to standard parking meter post without removing front wheel New Z-Cylinder is bump-proof and resists picking, pulling or drilling Security Rating: 65 Snap Lock Quick Release multi-position mounting bracket 5 laser cut keys ( 1 micro-light and 4 extra grip keys) \ Micro-light key projects a bright white beam