Features: This combines switches, sockets, and LED lights to teach basic circuitry concepts through hands on play, crafted from ABS for safe exploration. Features realistic rotating switches, push button controls, and color changing LED modules designed to develop fine motor skills and logical thinking in . Ideal for children aged 3+ in homes or preschools, fostering parent child bonding while meeting curriculum objectives for STEM education. Portable design enables interactive learning during travel, playdates, or classroom activities, with LED for engaging low light . ASTM/EN71 compliant construction ensures worry discovery of cause effect relationships, blending sensory stimulation with foundational engineering principles. Specifications: : ABS plastic, safe and materials, ensuring safety Size: Suitable for children's handholds, easy to carry and store. Package Includes: Host × 1 LED light module × 1 module × 1 Socket module × 1 Analog circuit connection line × 5 ABS base plate × 1 Chinese and English bilingual manual × 1 Educational Concept Introduction Card × 1 note: Please allow 1-2cm errors due to manual measurement.