The design of this Float Anchor was inspired by a SCUBA diving instructor who wanted an anchor that would fit inside his float. Part of his need was a T-handle design that gave him a better grip to twist the Float Anchor into the sand. The handle stows for compact storage and swings up into the "T" position when needed. It has a 4" diameter screw for securely holding floats and lines in the sand. Three 1 7/8" diameter rings on the up post and T-handle allows for a variety of attachments. You can carry the Float Anchors in your dive float with the zipper closed. Made with 316 Stainless Steel construction.