Brickyard Building Blocks [Improved Design] 4 Blue Baseplates, 10 x 10 Large Thick Base Plates for Building Bricks, for Activity Table or Displaying Compatible Construction Toys (4-Pack, Blue) THE #1 HIGHEST RATED & MOST REVIEWED BASEPLATE ON AMAZON - Join the hundreds of thousands of satisfied customers who have already purchased our best-selling baseplates. Because we're SO confident you'll love this baseplate too, 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. STACKABLE WITH BOTTOM CONNECTIONS - Our baseplates give you the added benefit of connecting building bricks from below to create multiple levels/stories. Name brand baseplates do not offer this feature. Our baseplates are 100% compatible and proven to work with ALL major brands of building bricks. THE STRONGEST, TOUGHEST, AND MOST DURABLE BASEPLATE EVER MADE - BUILT TO LAST A LIFETIME! A premium quality base plate that is double the thickness and twice as strong as the name brand! We guarantee you can feel the difference in quality. Our base plates have been tested to comply with all U.S. toy safety standards and are free of lead, cadmium, and phthalates. THE MOST POPULAR BASE PLATE USED TO BUILD PLAY TABLES AND WALLS BECAUSE [1] The edges connect together seamlessly, [2] The square corners fit together perfectly with no gaps; preferred over baseplates with rounded corners, [3] Easily cuts to any size, [4] FREE DIY table guide with easy-to-follow instructions delivered to you by email. Excellent supplement to the STEM education curriculum. 5 DIFFERENT COLORS FOR YOU TO CHOOSE FROM - Our building brick baseplates come in green, gray, blue, sand (tan), and white colors. To see the different multi-pack color options, see above. DISCLAIMER: LEGO is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this product.