Sun seed Grainola treat bar is handmade by coating different mixtures of seeds, grains, fruits, vegetables and nuts with a specially developed binder, hand packing them into forming trays and then slowly baking in low temperature ovens for over 8 hours. The result is a delicious, long lasting treat bar that small animals will spend hours gnawing or pecking on to get every last morsel. Designed for rabbits, guinea pigs and chinchillas. These treats can last up to a week or longer depending on the size of pet. Comes with carrot cake flavor. This product weighs 2.5-ounce.