Building Bricks Block Base Plate - White 6 Pack of 5&rdquo;X10&rdquo; Baseplates - Compatible Major Brands Building Block Toys 6 packs 5 x 10 inch (16 X 32 studs) white baseplates ,ABS material Compatible with Major Brands ,Not for DUPLO sized blocks Keeps your creations together ,easy to carry and tight fit.Great for group building. Recommended for age 3 and up. The plates are not affiliated with or endorsed in any way by Lego, a registered trademark of Lego Systems