The Rion Base Kit was engineered to provide additional stability and additional head room for Rion Greenhouses. Manufactured with heavy duty 100% UV-protected Resin and engineered with a U-shape, honeycomb design for extra durability. Filled with soil this base kit provides a solid foundation and it also provides additional 12 cm of head room. Like all Rion products, the Base Kit assembles in a snap. Push-fit assembly – snaps together quickly Elevates greenhouse up to 12 cm Heavy duty 100% UV-protected resin frame Areas prone to strong winds may require additional stakes or concrete footers ‘