The Lumabone Bulkster Some dogs can destroy just about anything. So we cranked up the size factor with the Lumabone Bulkster. Flavored with nothing but real bacon or beef, it's sure to put your monster chewer to the test. About Lumabone Lumabone's durable chew toys are sure to be hit with your monster chewer. We make ‘em right here in the good ole USA. Dogs can tell a fake a mile away, so we use only real flavors. We're Serious About Safety Our durable nylon bones are tough, but keep an eye out for wear and tear and discard when they get gnarly. They're pretty hard, so some champion chewers need something softer. Still have questions? See our website or give us a shout. We're here to help!