From the Manufacturer; Magnum Size 33 Yellow Rubber Band Gun ammo. Rubber bands designed specifically for use with Magnum Enterprises rubber band guns requiring size 33 rubber bands. Approximately 200 rubber bands to a bag (sold by weight). Please use responsibly. All Magnum12 products are 100% American made. We know you will enjoy our well-engineered products. Magnum is a registered trademark of Magnum Enterprises, LLC.