EXTRA LARGE BUILD PLATFORM: The Max Build size for this LK1 3D Printer is 300*300*400mm RECOVER PRINTING FUNCTION: The LK1 has the ability to resume printing even after a power outage or lapse occurs. EASY TO ASSEMBLE AND OPERATE: LK1 uses touch color screen for easy and quick operation. It comes with several partially assembled kits, very easy to assemble. PRINTING EFFICIENT AND SAFETY: With a tempered glass plate on the heated bed, which makes models are easier to be removed. It also makes the hot bed more flat and provide all-around production. And build in power management and thermal cooling system, keep the printing safer. TECHNICAL SUPPORT: The Longer provide one year after-sale service for printer and lifetime technical assistance and 24H response. There also has a growing user community to sharing their successes and trials on Facebook, Reddit, and Youtube, which very helpful to beginners even seasoned users.