Designed for ages nine and older, the ingenious system of small parts combine in numerous ways to create an infinite number of models. As kids enjoy building the 25 models set, they are learning important skills like patience, organization, coordination and how to follow directions. The imagination of creative builders will be stimulated because once they complete the challenge, they will love to invent something new! The Meccano 25 Model Set features a 3V motor that children can use to see their creations move! Build, Learn, Play: Instructions are helpful and clear, showing in detail how to build 25 models with tools (standard Meccano tools included) and what is needed before your child gets started. Meccano is well known brand for educational value and quality Includes 584 pieces with real metals including working gears, 3V electric motor, 2 real tools and instruction sheet for 5 models and 1 instruction sheet for 2 motorcycle models Enhances fine motor skills, promotes imaginative and creative play.