The Breckenridge is a 4" tall 11-1/2" wide and 7" deep block that has a rear lip system lock which means it needs no pins or clips to install the block, it also means that it will give a uniform face to any project with the rear lip. Having no clips or pins saves time and money when using this block. This block doesn't need a cap to finish it off but they are available if desired. It weighs only 20 pounds that means easier installation also. These are available in 4 colors - gray, tan, red, and mocha.