Exotic Nutrition's Silent Runner Glow Wheel 12'' Regular Is The Most Innovative Wheel On The Market For Its Safety Features And Whisper-Silent Spin. The Autoclean Track Makes Cleaning A Breeze By Allowing Debris To Fall Through The Holes In The Track. Size: 12'' Wheel Diameter, 3.5'' Wide Black Track, 4'' Diameter Openings, 13.5'' Tall On Standfeatures:

• Safe: Axle-Free Construction Prevents Fur/Tail Entanglement, Pet Wrap-A-Round, Curvature Of The Spine, And Other Injuries.
• Quiet: Whisper-Silent Spin Using Dual-Ball Bearing Technology.
• Practical: Wheel Completely Disassembles For Easy Cleaning, No Nooks For Feces To Hide In.
• Secure: Designed With A Front Plate For Safety And Containment, With Natural Bean-Shaped Openings.? Convenient - Autoclean Track Is An Easy Way To Keep Feces And Debris From Building Up On The Wheel, And Sandy Track Files Down Pet Nails While They Exercise
• Effective: Autoclean Track Increases Ventilation & Sandy Track Trims Nails Safely
• Easy: Simply Install The Autoclean Track Or Sandy Track In Place Of The Regular Track, It Takes Less Than A Minute. Please Note, Front Plate Will Appear Grey/Translucent On Arrival. Like All Glow-In-The-Dark Items, The Front Plate Needs To Sit In A Lit Room For A Few Hours For It To Glow. It Will Absorb Light During The Day Then Glow In Complete Darkness At Night.