This Plus-Plus Metal Suitcase contains 70 Basic color mix BIG Plus-Plus pieces and a handy tin storage box for easy transport and tidy organization. A Guide Book offers step-by-step instructions to build flat mosaics and 3D creations like animals, people and buildings, making creative projects simple to follow. Bright, interlocking pieces promote open-ended play, fine motor skills and early STEM thinking while remaining durable for repeated use. Made free from endocrine-disrupting substances and housed in a premium metal case with a secure handle and clasp, this set makes a stylish, safe gift for children and parents.