When a glass light is broken, take it out and screw another in. That's all there is to it. No smashing of cement, no trouble, no bother. Takes but a few minutes. You always have LIGHT.

A Mullen Replaceable Vault Light Sidewalk costs less in UPKEEP than any other walk—the first cost is less than any other vault lighting sidewalk—it will outwear the building.

If you want to utilize your basement space—if you are building or contemplating repairing your sidewalk, you will be interested in this sidewalk.