Universal Portable Rolling Stage Dolly Cart for 4X4 and 4X8 FT. Stage Platforms, Adjustable Mobile Stage Deck Storage Trolley (Custom Sizes Available). Fully Customizable Dimensions: Length, width, and bar positions can be tailored to specific stage panel depths and stacking preferences. Adjustable Frame Height: Telescoping design allows height adjustment from 28 to 48 inches for low-clearance transport. High Load Capacity: Holds up to 6 units of 4'x4' or 8 units of 4'x8' stage decks with dual-sided balance. Heavy-Duty Casters: Equipped with four 6-inch smooth-swivel casters, including two with dual-step brakes. Secure Retention System: Features 14-inch extendable top retainers with quick-turn knobs to prevent tipping. Durable Powder Coating: Anti-rust sleek powder coating ensures long-lasting protection against scratches and corrosion. Space-Saving Design: 31-inch width allows smooth gliding through standard corridors and doorways. Bulk Wholesale Optimization: Shipped in CKD flat-pack state to minimize ocean freight costs for importers.