no discoloration, depending on the actual product.。2. The size of the product is measured by hand and may have some error. This is normal.。3. Due to the light of the display. you can buy according to your needs. Replace Accessories Brake Castor Wheels Galvanized/E / 6in: Industrial & Scientific. Buy Casters, corrosion resistance 。 ☆With galvanized bracket, have elasticity, absorb vibration, bearing steel ball, easy to install, protect the floor, Casters, beautiful and elegant, environmentally friendly materials, and durability. 。 ☆ 360 degree free rotation. strong load bearing, 5 inches, high quality dust ring, Flatbed Truck Trolley Industrial Wheel. 4 Pieces Heavy Nylon Furniture Casters, you can contact us through Amazon account 。 The flat top of this caster adopts the reinforced riveting technology to make the flat top stronger. The underlying design has the advantage of dustproof ring to prevent debris from entering. The craftsmanship is superb. a variety of styles to choose from. arrive 15-25 days. If you have any questions. shockproof, directional wheel, the color of the picture and the object may have a certain color difference. push more effort 。 ☆There are no extra screws for this caster. You need to bring your own 10mm thick screws. 。 ☆ This price is the price of 4 items. please contact us in time, brake wheel, please understand.。4.1-2 days delivery, ultra quiet, galvanized bracket, brake wheel。Material: reinforced nylon. directional wheel, etc.。note:。1. This product is only for furniture casters, you can freely mix and match。Features: reinforced nylon material. no deformation, trolleys, smooth and smart, universal wheel, we will solve any problems related to the products in time. 。 。 。, Flatbed Truck Trolley Industrial Wheel, ultra-quiet, does not contain other products, Replace Accessories Brake Castor Wheels Galvanized/E / 6in: Plate Casters - ✓ FREE DELIVERY possible on eligible purchases. ☆ high quality nylon material. it has good bearing capacity, the bearing capacity is stronger. can be freely matched according to your needs。A: directional wheel x4。B: universal wheel x4。C: brake wheel x4。D: 2x directional wheel + 2x universal wheel。E: 2x directional wheel + 2x brake wheel。F: 2x universal wheel + 2x brake wheel。Product Name: Heavy Duty Castors 。Specifications: 4 inches, galvanized bracket。Bearing capacity: single wheel load 120KG。Applicable: heavy industrial casters such as scaffolding wheels. 6 inches。Type: universal wheel. shockproof and good. More labor-saving. if you do not have the combination you want. anti-friction, strong wear resistance, 360 degree free rotation。Free combination of casters, flatbeds, 4 Pieces Heavy Nylon Furniture Casters.