brand new and high quality Features: Well,teeth grinding stone is a must for small pets like hamster,because their food is for always hard to bite. This type of stone is made from natural mineral,which is good for their for health and absorb some nutritions. Slight soft is convenient for them to grind. Grinding their teeth and cleaning their teeth meanwhile. 2 size can be available for you to choose. Can be hang on the cage with a rope and convenient for your pets. Specification: Material: Mineral Type: Cube Color: Random delivery(if you buy more than one,the color you received will be different or the same) Size: 2.5x2.5x2.5cm(0.98x0.98x0.98in) 2x2x2cm(0.79x0.79x0.79in) Quantity: 1 Pc(stone only,other accessories demo in the picture are not included!) Note:1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 1 x Stone