This Plus-Plus Tube contains 100 colorful interlocking pieces in a reusable, travel-friendly container, ideal as a compact building kit for on-the-go play. This creative construction set includes step-by-step instructions and all parts needed to assemble an airplane, while open-ended building bricks invite original models and imaginative design. This hands-on construction toy supports fine motor skills, spatial awareness and early STEM learning through repeated assembly and exploration. This durable travel toy features premium-quality pieces and neat storage that appeal to children and reassure parents looking for an engaging, tidy play option.