100% COMPATIBLE WITH ALL MAJOR BRANDSCompatible with Lego. Mix and build with your existing name brand building bricks. Tested and proven to work with all major brands of building bricks. Made of premium, high quality material that have been tested to comply with all U.S. toy safety standards and are free of lead, cadmium, and phthalates.THE LARGEST AND MOST COLORFUL WHEELS & TIRES PACKAGE SOLD ON AMAZONAt last, a premium quality compatible kit that contains enough wheels, tires, and axles to make 18+ movable cars at the same time. Because we're SO confident you'll love our wheels and tires set, it's backed by our NO-HASSLE SATISFACTION GUARANTEE. If you don't love it for any reason, you can return it for a full refund.FREE BRICK SEPARATORNever struggle to pry apart brick pieces again. Separate connected bricks instantly and effortlessly with this amazing, easy-to-use tool.MORE STEERING WHEELS, WINDSHIELDS, AND CHASSIS PIECESThis complete set includes wheels and tires for at least 18 car frames, steering wheels, windshields, and a large quantity of red, green, blue, and yellow car frame pieces. Excellent supplement to the STEM education curriculum. For other package sizes, see above.3 DIFFERENT WHEEL SIZESEasily create vehicles of different sizes with our popular large, medium, and small wheels.Our goal at Brickyard Building Blocks is to provide you with affordable, high quality building brick toys that are 100% compatible with all major brands of building bricks.