This youth size pitcher plate and anchor system will be a durable addition to your game. The plate features a steel stanchion which is bolted to its base and is designed to attach to the anchor, which is cemented into the ground, providing a sturdy surface for your pitcher. Set of 3 . Installs quickly and easily . Semi-permanent anchoring system . All steel stanchion bolted to pitcher"s rubber . Slides into anchor system cemented into ground . 4 in. x 18 in.