JBL WK-4S Swivel Caster Set (4)

Transporting your JBL subwoofers is easier than ever with the JBL WK-4S subwoofer caster kit. These durable metal casters attach directly to the rear panel of your subwoofer using the existing mounting points, allowing for smooth and effortless movement while reducing the risk of injury. Their rear-mounted design is also compatible with JBL subwoofer covers, offering protection from dust and moisture during transport. While JBL subwoofers come equipped with ergonomic handles, many road crews—like those at Sweetwater—see the WK-4S caster kit as an essential accessory for safely and efficiently moving and positioning the enclosures.