These balls are so silly! This two pack of boob stress relief balls are so squeezable that you might find yourself using them when you're not too stressed. Use before a stressful event to relieve the stress or give as a funny gag gift for your friends or partners. The balls really look like breasts with a nipple and everything. These balls are peach skin colored and made of durable TPR plastic. Each stress ball measures 4 x 3.5 x 4 inches.