Spark your imagination with our bright, unique, and eco-friendly 3-D Building Puffs. Great craft medium for STEM and STEAM activities *WHAT YOU GET: Enjoy crafting with colorful puff nuggets! The set comes with four bold color puffs and two small application sponges. *STEAM: Build, decorate, and create anything you can imagine. Kids can engineer 3-D models with their imagination, and express individuality and self-expression while practicing motor skills. *NO GLUE OR TAPE: Just add water to the sponge, dab puffs, and our puffs easily stick together to paper or each other! Each puff can be broken, cut, or shaped to the desired size. *BRIGHT COLORS: 4 bright colors include: blue, yellow, red, and green. Puff measures 1 inch long. *SAFE & ECO-FRIENDLY: Puffs are made from cornstarch and are biodegradable. Free from most common allergens; does not contain latex, dairy & casein, egg, gluten, peanut & tree nut.