TWS Monster deer blinds are constructed of panels made from galvanized sheet metal and styrofoam, nothing to rot, weather or crack. Supreme insulation holds heat and reduces external noise. The blinds feature aluminum framed, removable, lockable sliding glass windows. Insect and varmint proof. Carpeted floor, corner and overhead shelves. Towers are all welded (no fasteners) made from heavy duty angle iron and available in models up to 20' tall. Zinc plated hinges, deadbolts and locking hasp. Porch with full safety rail for safe entry and exit. Double railed staircase with non slip steps for safe, easy climbing. 3" angle iron tower legs with 2" angle iron cross members and diagonal braces. Heavy duty angle iron sub-floor for maximum support and stability. Sub-floor, tower and staircase are fully welded for utmost structural integrity.