Hamster Wheel 8&rdquo; Pet Comfort Exercise Wheel Large and Easy Attach to Wire Cage for Hamsters Gerbils Chinchillas Hedgehogs Mice and Other Small Animals - Premium PP Material Blue ONLY FOR HAMSTERS AND PETS UNDER 3.5 OZ - Comes in 8.3 of a diameter which is ideal for hamsters, gerbils, mice, hedgehogs and other small animals with weight under 3.5 oz. More than that could potentially make the silent runner wheel noisy or not silent. WHAT OUR CUSTOMERS SAY - Here is what some of our customers say: Thank goodness! It's hard to find a quiet wheel in this size. This works pretty well, Perfect size for a Syrian hamster! Our gerbil doesn't want to get out of it, Good product, after giving it a try I ordered the second one. The 8.3 inch one is perfect for Syrian Hamsters. QUIET, NON-SLIP, SAFE, AND SUPER THICK DISC WALL DESIGN - The wall is thick and detachable for easy assembly and the steel works silently for your pet's exercise or play time, so it won't bother you. This rodent wheel is equipped with 3-point seamless button design for more secure and stable. Also medial-lateral roulette stampede convex, effectively increase friction and prevent slipping. PREMIUM GRADE PP MATERIAL - Our hamster toys is made of high-quality PP material which non-toxic and prevents further accidental injury. They are sturdy and simply wont break or crack to ensure the durability that lasts for years and rotating speed stability. And the circular edge set will make it more secure, sturdy, and effectively prevent biting. GRAB YOURS NOW!  This sugar glider wheel is durable, sturdy, and safe wheel for your lovely pets. If this hamster saucer doesn't work as what our customers say, feel free to return it within 30 days and get your money back guarantee! Also, 6 months warranty for nuts or bolts replacement if the screw or nuts are broken. Take this great offer with click Add to Cart button above.