Develop basic engineering skills while having fun! Follow the illustrated play guide to build structures graduating from easy, to medium, to partially designed & open-ended foundations. This building toy has been designed to engage early engineering skills and creativity alike. Has STEAM benefits. Includes 180 tubes (60 of each length), 140 connectors, and play guide (18 cards) with graduating structures. STEM LEARNING KIT - The Roylco stem kits help to boost up aptitude in science and technology, math skills, building skills and develop fine motor skills in the child from early childhood. PRACTICE MAKES PERFECT - Begin early to train your child to count, learn color distinction, identify different shapes stimulate the ability to create with the tubes and connectors building kit. DEVELOPMENT TOOLS - These engineering toys for kids are excellent development tools that help the child pick up skills, improve focus, be patient, improve balance, and develop logical thinking. LEARNING FUN - The building kits with toys to work on are learning toys that become fun games which help small children to learn to develop team building and other social skills. GREAT GIFT - This STEM construction building set is a great gift containing 180 count plastic tubes, 140 pipe connectors, and a play guide. The child can use flexible pipes to make awesome things. Age: 4-8+ years/Grade K-3