With dimensions of 31.5x22.4x62 inches, this balcony greenhouse offers a larger and taller interior than traditional cold frames, accommodating more plants without overwhelming small spaces. Its compact footprint ensures efficient use of balcony corners for multi-layer planting.Featuring 4 movable wheels (2 with brakes), this cold frame allows easy relocation across gardens and backyards, with detachable wheels for fixed use. An anti-tip strap connects to walls, minimizing tipping risks for safe, versatile placement.The 3-tier shelf system (2 removable + 1 half-shelf) creates 6 height levels with 5.5-inch spacing, ideal for tall flowers. An adjustable openable roof enhances airflow via screw-angle modification, preventing stagnant air and waterlogging.