The Manfrotto 394 RC4 Low-Profile Rectangular Quick Release Adapter is designed to convert heads without a quick-release plate. Supplied with 1/4"-20 and 3/8" camera fixing screws and 3271 Quick Release plate. Equipped with two built-in spirit levels.
This product can expose you to chemicals including lead, which is known to the state of California to cause cancer and birth defects or other reproductive harm.