Giottos Rubber Spike Tripod Foot FP1021 is a small but highly useful component for your tripod. A tripod is only as stable as the ground it stands on, and this tripod accessory can give you a good grip on even the slipperiest of surfaces. Designed to attach seamlessly to the feet of Giottos tripods, this tripod foot features a rubber tip that is ideal for use on hard surfaces such as concrete, table tops, hardwood floor, and linoleum. Unscrew the rubber of the Giottos Spike Inside Rubber Foot, and you'll find a short gripping spike that can bite in to spongy surfaces like gravel, wet soil, and clay, making this Giottos tripod accessory useful in any environment, indoor or outdoor. These rubber tripod feet can be used on almost any Giottos tripod. To add a non-slip surface to the feet of your tripods, screw on the Giottos Spike Inside Universal Tripod Foot.