STMA DVDs for mound and plate maintenanceJanuary 23, 2018 Provide a refresher to your crew on mound-building and home plate maintenance! STMA has DVDs in English and Spanish and is offering them at the low price of $15 each or two for $25. Order them now through the STMA shopping cart. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)