Concrete block is constructed out of Type I/II green cement that meet LEEDS specifications.  VM Products’ proprietary patent design using lag screws and flexible fastening cones – design ensures station and cement block are securely attached, providing years of service and eliminating assembly costs.  External concrete block adapts to environment (in soil it seasons to the aroma of the earth, and on concrete it is a familiar substance similar to the rodent’s surroundings).  External concrete block creates friction with ground to help station stay in place