The "Original" Bells™ kit is perfect for drive-thru applications, drives on residential property, and industrial locations. The complete "Original" Bells™ bell kit includes all of the pieces necessary to set up your driveway alarm system. This driveway signal bell kit includes one multipurpose "Original" Bell™ driveway signal bell, one durable driveway signal hose, and one heavy-duty rubber hose plug. Available in hose lengths from 25’-150’!