Our casters are made of urethane rubber, which is non-slip and wear-resistant and has a stronger bearing. At the same time, when you install these wheels on your furniture, it is convenient for you to clean the corners and move them, saving your strength and they will not make a sound, even in The baby can also be used with confidence when sleeping. Customer Service: If you have any questions, please feel free to contact us. We will get back to you as soon as possible within 24 hours. We have professional packaging, pay attention to every product, take every package seriously, think for the customer, and ensure that the safety of the product is delivered to your hands. product description: Name: Casters Quantity: 4 Material: metal + polyurethane Size: 1.5in Bearing capacity: 200kg (440lbs) Features: environmental protection, smooth surface, easy to clean, strong bearing capacity, compression resistance, wear resistance, anti-corrosion Caster type: rotating wheel, brake wheel ※※※※※ We are international logistics, the delivery time is generally 10-15 days, if you have not received the package within 30 days, please contact us in time. This product only contains casters, manual measurement size, there may be an error of 1-3cm. Due to the difference between the display screen and the light and each person's understanding of the color, there will be some differences between the physical object and the picture. Please refer to the actual product. You can rest assured - if you are not satisfied with the product, please contact us, we will be happy to help you, if you are satisfied with our products, please remember to give us 5 stars praise.