Apple Chew Sticks and Branches are real sticks and branches from real apple trees. These are all natural; No Dyes. No Artificial Additives. No Chemicals. Apple sticks are widely recommended by veterinarians for promoting healthy teeth. Rabbits, Chinchillas, Guinea Pigs and other small chewing animals simply love the taste of the apple bark. Hand cut, trimmed and selected for the best quality. FarmerDave's ENHANCED CURING SYSTEM guarantees Maximum Hardness, NO Spoilage, and NO Bugs. FarmerDave's ENHANCED QUALITY CONTROL and TEST & MEASUREMENT PROCESSING guarantees the very Best Quality.