Specifications: Small pets like squirrel, chinchilla, rabbit, parrot, their teeth always need to grind regularly in order to eat food. Made of calcium, it is natural and good for your pets. Suitable for squirrel, chinchilla, rabbit, parrot, etc. Due to the different density, the weight deviation may be large. Please understand. Item Name: Hamster Grinding Stone Material: Grinding Stone Features: Non-toxic, Molar, Chew Toy XS: Lenth: 3cm/1.18" (Approx.) S: Lenth: 4.5cm/1.77" (Approx.) M: Lenth: 5cm/1.97" (Approx.) L: Lenth: 6cm/2.36" (Approx.) XL: Lenth: 9cm/3.54" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hamster Grinding Stone