Our small animal lava bites are made of 100% natural lava rock,which is safe,non-toxic,Ideal material for rodent pets grinding their teeth,shape for critters to chew it safely effectively teeth health of small rodents. The front teeth of rodents have they growing throughout lives,These natural lava rock chew are good for teeth grinding to prevent teeth from growing too fast and too long can help your pets keep their teeth and gums healthy. rich in unique high calcium element,slows down osteoporosis They also transfer pets attention and help prevent pets from chewing cages,sleeping bed and other furniture. Specifications Color:As picture Material:Natural lava stone minerals Size:1.57x1.57x1.57 inches/4.0x4.0x4.0cm Package includes: 20xPcs Small animal lava blocks REMINDER: Remove the plastic film from the molar stone before use. The raw material is natural rock,so the product with some powder,please get rid of the powder after opened and then put into the cage. Chewing Toy for small animals Rabbits chew toy lava square stone teeth grinding mineral stone chew toy perfect for chinchillas,hamsters,guinea Pigs,gerbils,bird and other small animal. Lightweight,most pets will be able to push,toss,and roll hamster lava block.