This set of three Manfrotto 204SPK3 Retractable Spiked Feet fits their "D20.4" carbon fiber 20.4mm outer diameter tube found on the 055CX3 and 055CXPRO3 tripods.
The spikes are made from an anodized aluminum alloy, so they're extremely resistant to corrosion. Having spiked feet is beneficial anytime you're shooting on soft earth surfaces.
A dedicated mounting tool is included.
Fits the 055CX3 and 055CXPRO3 tripods
Retractable spiked feet made from anodized aluminum
Concentric, hard-wearing rubber covering easily extended for use upon hard surfaces