turn any surface into a building-block base! Versatile peel-and-stick tapes work with Lego®, Mega Bloks® and other block-style toys. Create an infinite number of structures; tapes are bendable, shapeable and can be cut to any size. Build upside-down, sideways, around corners, over curved surfaces! Each set includes four 3-ft. rolls. Color Mix #1: blue, red, gray, green; Mix #2: purple, orange, black, light blue. Ages 4 and up.