American Hind Plates (cont'd) << PREV | MORE >> Block Heel Hind plate with raised blocks behind to prevent running down and slipping. Available in: Regular sizes: 3, 4, 5, 6, 7 Quarter Horse sizes: 3, 4, 5, 6, 7   *Regular available with clips. Queens Plate Plain (with Steel Wear Insert) Queens Hind plate popular where steel raised toe calk inserts are prohibited. Available in sizes: 3, 4, 5, 6, 7