https://home.woot.com/offers/chew-king-supreme-rubber-fetch-balls-2pk-2?ref=w_cnt_lnd_cat_alldeals_5 2-Pack Chew King 2.5" Supreme Rubber Balls for Dogs for $3.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot! to apply free shipping) or is $6 per order.