The Gitzo GSF33 Rubber Foot 33mm (set of 3 feet) is the standard model, also offered as a handy tripod accessory to provide stability on a variety of surfaces, including slippery floors. These high-resistance rubber feet have a diameter of 33 millimetres and are compatible with all Gitzo tripods with 3/8’’ screw thread on their leg ends. The GSF33 replaces the GS5030.