<span>Made of good material, they can be used long term. Transform your flight cases, instrument cases, display equipment, dollies, tool boxes, light machinery, and furniture into practical pieces that can be moves with ease using our caster wheels! Easy to use and practical, these heavy-duty caster wheels are must-haves for many projects.</span> <div> </div> Features <span>- Material: Nylon.</span> <span>- Size: </span><span><span>5.50X4.00X2.50 </span>cm/<span>2.16X1.57X0.98 </span>inch. - You will have good use experience because of the perfect workmanship of this product. - The design is simple in structure, easy to install. Very practical and excellent for home use. - Made of high-quality material, and reliable enough for your long-term use. - With strong load-bearing capacity, universal wheels can bear strong and wear-resistant. - Making your chair more convenient and labor-saving to move. Enjoy and smooth gliding at your home or office.</span> Package list: 4 x caster wheels