Self-Watering Saddle Railing Planter, 16" Convenient self-watering deck railing planter installs in seconds Dual planting areas bring 360 degrees of color and beauty to decks, balconies and fences 16" L x 7-1/2" W (each side of the saddle) x 7" H Each side holds 6 quarts of potting mix; 12 quarts total Adjusts to fit railings from 1" to 5" wide