Made in the USA! Open the box to a new universe of creative fun. YOX® are large and nearly indestructible Y, O, and X-shaped links that connect with TP tubes, paper towel rolls, cardboard boxes, and other creative stuff to inspire the designer and inventor in everyone. This 50-piece building set features 32 links, 16 instruction cards, and two tubes designed to inspire infinite hours of creative play. Durable YOX Cards provide the building basics and twelve sample builds ranging from an owl and a flower to a rocket and a robot. Each example includes a QR code link to a video with step-by-step instructions on how to build what's on the card. YOX links come in three fluorescent colors and are crafted from high-quality ABS plastic. The links are safe and durable, designed to last for years and inspire generations of young inventors.