8 months & up. Toddlers and young children will delight in these cheerful colored blocks. Whether they are stacking them in unlimited ways or simply releasing energy with a rough-and-tumble time. The two-color soft, vinyl-covered blocks come in 3 different shapes. The set of 12 includes four 6" square cubes, four 6" triangles, and four 11.75" x 6" x 3" rectangles. Surface washable.