81lb. Heavy Duty Concrete Umbrella Base Stand w/ Wheels BestChoiceProductsPre-Lit24inchTabletopChristmasTreeSmallHolidayArtificialDesktopDecorw/WarmWhiteLightsRedVelvetCover​ or even classrooms with a

or even classrooms with a little holiday cheer

DURABLE COMPOSITION: Crafted with a protective finish

without moving the entire chair

GREEN ROCKET: Kids are blown away when they see how something as simple as air pressure launches homemade rockets up to 80ft in the air by engineering recycled materials

Teaching mode and other demo modes have kids follow along with light-up keys

81lb. Heavy Duty Concrete Umbrella Base Stand w/ Wheels BestChoiceProductsPre-Lit24inchTabletopChristmasTreeSmallHolidayArtificialDesktopDecorw/WarmWhiteLightsRedVelvetCover​ or even classrooms with aMOBILE UMBRELLA STAND: Made with a set of collapsible handles and four locking wheels to move your umbrella anywhere in your yard, patio, or garden SOLID CONCRETE: 81 pounds of robust concrete provide your umbrella with a solid anchor against heavy wind and rain ONE SIZE FITS MOST: Holds umbrella poles up to 2 inches in diameter with an adjustable tightening knob to keep the pole in place DURABLE CONSTRUCTION: Made from heavy concrete with a weather