Minimum per annum rent thresholds are established for the 4 Bid Items available for bidding, and are as follows: $75,000: 144’ centerline + Platform with 3’ x 5’ ground equipment space dimensions $72,000: 138’ centerline + Shelter with 20’ 1” x 11’ 1” ground equipment space dimensions $69,000: 130’ centerline + No Ground Space $66,000: 119’ centerline + Platform with 20’ x 10’ ground space dimensions The following descriptions define the specific tower space parameters and dimensions for each applicable centerline elevation: The leased tower space for elevations at 138', 130' and 119' is defined as being a roughly cylindrical shaped envelope which extends 42 inches vertically above and below the applicable centerline, for a total of 84” vertical inches top to bottom, and 8 feet horizontally from the tower exterior at the applicable elevation. The leased tower space for the 144' elevation is defined as being a roughly cylindrical shaped envelope which extends 16 inches vertically above and below the applicable centerline, for a total of 32” vertical inches top to bottom, and 8 feet horizontally from the tower exterior at the applicable elevation.