The Balancing Curve A Beam support balance and coordination. The set includes 6 flexible foam sections that are 2 feet long and 4 1/2 inches wide. Made of soft, durable, tear-resistant and light-weight Etha foam. The beams will not scratch floors and soft enough for kids. The Balancing Curve A Beam set has 1 of each blue, red, purple, yellow, green and an orange beam. The beams connect with plastic plugs and are easily interchangeable. You will be able to configure many different designs. Kids will love coming up with new ideas to connect them together. Great for kids in gymnastics to help build confidence and balance.