This upgrade kit is perfect for Prusa MK3S users who want to improve the stability of their print bed. Whether you're a hobbyist or a small business owner looking to enhance your 3D printing experience, this kit is for you. The kit includes a 6mm Carbon fiber Quad Bearing mount, 4 Misumi LM8UU Linear Bearings, 4 Bearing holders, and 10 M3 Steele screws for bearing holder. It's easy to install and will give your print bed a more secure and stable hold.