11"x17"x1/8"-Frame-It Flex® DuraTec® Window Calendar Counter Mats are "Odorless" LATEX-FREE synthetic rubber backed window mats with durability that beats Heavy Duty rubber mats. The mat's window lets you easily update your promotion by simply changing an insert. Great for location specific info and frequently changing pricing or promotions. The calendar can start on any month and is customizable. Stock calendars in varying layouts are available. Made in the USA.