16-Panel Heavy Duty Metal Dog Playpen, 40" Tall Pet Exercise Pen with Self-Locking Gate for Indoor/Outdoor Use

‌Extra-Tall Security: 40" height prevents jumping over for large/athletic dogs (fits Great Danes, German Shepherds, etc.) Smart Self-Locking Gate: Gravity latch mechanism ensures secure closure while remaining paw-friendly All-Weather Metal: 6mm thick rust-proof steel panels withstand sun, rain, and snow Customizable Layout: Connect 16 panels (27" wide each) in circular, hexagonal, or rectangular configurations Portable Protection: Includes 16 ground stakes + rubber feet for indoor/outdoor stability