Quantity and material: comes with 2 pieces wood catch balls, made of quality wood, non-toxic and odorless, smooth surface, no rough edges or chipsDurable design: designed with a sturdy wooden construction, linking with a rope and a ball, the ball is fixed well and won't fall off easilySize: the wooden cup measures 10 x 4 cm/ 3.9 x 1.5 inches (L x W), the inside diameter is approx. 3 cm/ 1.2 inch and fits with the ball well, the linking rope is about 29 cm/ 11.4 inches longHow to play: flip a ball into the air and catch it in a wooden cup, practice more and accumulate more experience, easy for you to master this skill, suitable for children over 14Notice: the brightly colored wooden ball is attached by a stout cord, easy for your eyes to track, make sure whether are there any people and things in the surrounding