The Manfrotto MF 017 is a set of 3 casters for light stands with legs with a diameter of 19mm. The Manfrotto 017 is very convenient to relocate the lights during shooting very quickly.
The Manfrotto MF-017 Castor set is specifically compatible with the following Manfrotto stands: 3086, 3086QL, 3351, 3360, 3361, 3361QL, 3362. The MF017 wheels slip on, and are locked in place with an allen wrench.
Manfrotto MF 017 Castor set - 19mm