P's and Q's are great for children and adults who need extra practice with biting and chewing skills. They are solid rather than hollow—perfect for oral stimulation. The "Q" is wide enough for bilateral chewing activities, and the "P" is especially easy to grasp for small fingers. P's and Q's are lead and latex-free and don't contain PVC or phthalates. You get one "P" and one "Q" in each package. "P's" are 31/2" by 13/4". "Q's" are 31/2" by 23/4".