This bottle holder fits easily over stalls or fences and folds flat for easy packing or storage! A perfect solution for keeping fly and coat sprays close at hand. Steel construction with a powder coated finish to prevent rusting.Three sizes to choose from. Small holds a single standard quart bottle, Medium holds a single wide quart bottle, and Large holds a standard gallon bottle.Small: 11 1/4" tall with 3" x 3 1/4" opening, Medium: 11 1/4" tall with 4" x 4 1/4" opening, Large: 11 1/4" tall with 6" x 6 1/4" opening