Brio My First Railway Light Up Rainbow Set is an interactive toy train set that introduces toddlers to basic sequencing and cause and effect patterns in a fun and engaging way. Follow the lights and make the rainbow shine in the Light Up Rainbow Set. The aim of the game is simple – light up the rainbow with all of its beautiful colours. To do so, just follow the blinking lights on the tracks with the little wooden train. Each time you correctly follow the lights through the cloud and complete the challenge, the rainbow will light up one of its four colours and a cute melody will play. Light up all the colours and youll be lucky enough to experience a playful song and light show. Contains 1x Rainbow Cloud, 4x Ascending Wooden Tracks, 4x Guiding Ramp Tracks, 1x My First Railway Engine Compatible with My First Railway and BRIO world All train sets, rails, accessories and destinations feature the classic wooden train track allowing for easy connection to each other and expand your ever expanding BRIO World. Crafted using FSC sourced European beech wood and high-quality plastics. Recommended for 18M+ SpecificationsWidth (mm): 757Height (mm): 191Package Width (mm): 365Package Height (mm): 270Package Depth (mm): 130Battery needed: YesBattery included: NoNumber of AAA batteries: 2CE YesFSC YesGrner Punkt YesTurnable Magnets YesLight YesSound YesGuide track Yes