Teaching cause and effect has never been so much fun! With this 79 piece chain and gears set, your students can create endless configurations for hours of creative play. This accessory set for modular STEAM walls encourages the development of logic and reasoning skills as well as teaching simple engineering and building. This set includes 38 different gears in an assortment of fun colors, 20 pegs and 20 screws to mount the gears to your STEAM wall and 1 chain with removable links. Pair with our tool builder set for a realistic building experience. Teach your students teamwork and cooperation by creating exciting challenges for them to complete together. Whether they are engaging in independent play or teacher led activities, your students are sure to love this addition to your classroom. For easy cleaning wipe with a damp cloth.