brand new and high quality 1. Mineral stone for grinding teeth, made in natural mineral with calcium. You may fix it on the cage, convenient and hygienic. It helps the small animal to add more nutritive substances during chewing and make it more robust. 2. The teeth of small rodents grow continuously, owners need to prepare grinding tools for them, or else they will be uncomfortable if their teeth are too long, so as not to affect their food and avoid grinding the nest or cage. Mineral Teeth Grinding Stone only, other accessories demo in the picture is not included! Specification: Material: Mineral teeth grinding stone Gender: Unisex Application:hamster, rabbit, guinea pigs, chinchillas, squirrels Dimensions: S: 2.8 for cm/1.10" L: 4.5 for cm/1.77" Color: As the pictures shown Quantity: 1 Pc Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Mineral Teeth Grinding Stone (without retail package)