The S-Series double first base combines the exclusive Soft Touch base design with a spike-down mounting system that can be installed on any grass or dirt area. This base should be used when double ground anchors are not present. Use the standard square Soft Touch anchor for one side and the spikes to anchor the other. It can be used with other Soft Touch bases or with other brand bases at 2nd and 3rd base. Double first bases are designed for player safety so the feet of the first baseman do not interfere with the runner. Soft Touch bases are designed to flex and absorb energy as a player slides into the base. In the case of uncontrolled slides, the "Progressive Release" action allows the base to flex until enough force is applied to "pop" the base free from the mount, unlike any stationary base.