Description: Material: The cat running wheel is made of wood, fine workmanship, durable, sturdy and stable.Cat Exercise Wheel: Heavy duty, silent, perfect for cats to run at home, exercise and playDesign: Silent running wheel, quiet working and wear resistant, comfortable and relaxing.Feature: The cat supplies wheel is easy to install, scratching resistant, suitable for most cats.Gift: Great Gift Choice for your pets, cats, kitten on birthday, festivals, holidays, etc. Specification: S: 87cmx34cmx94cm/34.25inchx13.39inchx37.01inch, Suitable for Weight Below 3.5kgM: 90cmx34.5cmx100cm/35.43inchx13.58inchx39.37inch, Suitable for Weight 4kg to 5kgL: 96cmx36.5cmx107cm/37.80inchx14.37inchx42.13inch, Suitable for Weight 5kg to7.5kgXL: 110cmx36.5cmx115cm/43.31inchx14.37inchx45.28inch, Suitable for Weight Over 7.5kg Package Includes: 1 Cat Running Wheel Note: Please allow slightly errors due to manual measurement and different monitors. Description: 【Premium Material】: Our cat running wheel is made of high quality Density Board, durable, sturdy, and stable.【Cat Exercise Wheel】: Heavy duty, silent, perfect for cats to run at home, exercise, and play【Feature Design】: Silent running wheel, quiet working and wear resistant, comfortable and relaxing.【Lock Design】: Brake buckle design, easy to switch and more secure, stable work and rest when locked at night, secure when going out.【Good Gifts】: Great Gift Choice for your pets, cats, kitten or small animals on birthdays, festivals, holidays, etc. Specification: Material: MDF Package Includes: 1 Cat Running Wheel Note: Please allow slightly errors due to manual measurement and different monitors.