A sustainable dog chew with a wide range of advantages will surely please your furry friends. These chews are sourced from the coffee wood trees that are 20+ years old without harming the natural ecosystem. It is harder than other forms of wood, making them last longer and resist splintering. These chews are a by-product of coffee production. Nothing man-made here, they are 100% natural, caffeine-free and a low-calorie product. Due to its unique nature, the chews can vary in size, shape, color and weight.