Scientifically formulated to provide 24 hour joint care. One daily dose keeps glucosamine in your horse s system a full 24 hours, over 24 times longer than other joint supplements. Extended release glucosamine releases slowly over time, providing a constant supply of available glucosamine to the joints. Size is 1.2 Pound. Dimensions are 5 X 5 X 5.2 Xr Glucosamine (5000 Mg), MSM (100 Mg), Chondroitin Sulfate (50 Mg), Calcium Ascorbate (Ester-C) (50 Mg), Hyaluronic Acid (10 Mg), Manganese Sulfate (10 Mg). UPC Code = 086621059443