Professional Modular Cage System This professional modular cage system includes everything you need (pans, grates and cage connectors) to build a kennel area unique to your space and needs. Specially engineered and designed for safety, strength, durability and longevity. Unique auto-closing latch system, provide easy and convenient customer experience. Brand new Flat-Face standing grill, no need to worry about the interdigital infection of pets when standing long on the round wire made gauge grill. Add mobility and versatility with a frame and large cage dividers. Cages are made of heavy-duty 20 gauge zinc plated steel with electrostatically powder coated exterior and interior.