Works Great with All Major Building Block Brands These high quality bulk building blocks will work perfectly with the existing building block sets you already own. Our brick pieces are perfectly compatible and have a tight fit. Instead of spending more money on a smaller set of building bricks, save money and have more fun with these bricks.Build bigger, better and more imaginative worlds with EKIND building bricks. Our set features multiple colors and 8 different Shapes & Sizes. Shapes included High brick 1×1, Slope 1×2, Flat 1×2, Flat 1×4, 1×6, 2×2, 2×3, 2×4.