This plug adapts the plastic filament reel from Elegoo to fit on the Flashforge AD5X reel spindles. The adapter is intentionally not snug-fitting, allowing the reel to turn and for the plug to be easily removed/swapped with other reels, but fits snugly on the spindles with a built-in guard to keep the reel from falling off. Total print time on the AD5X in 1 color was approximately 2 hours at .20mm Standard with no supports.