Build & Play: This 338-piece building blocks set allows kids to construct their own realistic gun toy, featuring 5 detachable cartridges for endless fun and creativity. Interactive Cartridge Loading System: The toy gun comes with 5 cartridges that can be loaded and ejected, offering a hands-on, realistic shooting experience during imaginative play. STEM Learning: Encourages engineering and problem-solving skills as children assemble the toy gun from individual pieces, improving their spatial awareness and fine motor skills. Safe & Durable: Made from high-quality, non-toxic ABS plastic, this building set is designed to be safe for kids while offering a sturdy, durable play experience. Easy Assembly Instructions: The set includes detailed, easy-to-follow instructions to guide kids through the construction process, making it a rewarding challenge for young builders. Perfect Gift for Creative Minds: Ideal for kids who enjoy building, crafting, and action-packed play, suitable for children aged 6 and up. Perfect For Ages: 7 to 12+