12 feet of flowing, curvy balance fun in a beam design so flexible you can configure 15 balance challenges! Each of the sections is 2 feet long x 4.5" wide. Ends can be laid tightly together or connected with unbreakable plastic plugs that insert into the ends. Easy to configure and connect. Made of institutional-tough, tear-resistant Ethafoam for years of use. Each beam includes a pictorial guide with all the "known" designs. Sold in sets of six colors (1 ea. red, yellow, blue, green, orange and purple).