A firm, Sea Me Inc., sells sea inspired jewelry and packs all of its orders in the custom print wave mailer pictured below, which they purchase from a firm by the name of Packola. Sea Me's marketing and advertising team features the wave mailer in many images on the firm's website and social media. Earlier today, Sea Me's shipping department noticed that they was running out of three sizes of wave boxes and when the purchasing department placed a rush order, Packola quoted a $5-7$ business day lead time to print the boxes. The wave boxes most likely should be classified as $\_\_\_\_\_$ on the Kraljic matrix.