The Classic Boink is more than just a fun toy - it helps develop fine motor skills and aids in a wide range of therapies, including therapy for autism spectrum, Parkinson's disease, stroke and brain injury victims, cerebral palsy and more. Made from plastic strings woven into a tube, it features a spring-like action and can be launched across a room. Plus, the woven plastic design allows it to be manipulated into all sorts of shapes. Measures approximately 3/8" wide by 5-1/2" long. One per package. Color and pattern will vary.