This DIY screw building blocks set comes with 124 pieces in a mail order box, offering a hands-on construction experience for children aged 3 to 6. The set includes interlocking blocks and screws that let kids assemble various shapes and structures, encouraging fine motor skills and creative problem-solving. The pieces are sized for small hands and designed for easy twisting and fitting. Sold wholesale by the box, this set is a practical addition to retail shelves for young builders.