Specification>p>Item Type: Suitcase Caster>p>Product Material: PP + PET>p>Color: As Pictures Shown>p>Weight: Approx. 309g>>10.9oz>p>Total Height: Approx. 9cm>>3.5in>p>Wheel Diameter: Approx. 6cm>>2.4in>p>Product : A Pair of Double Row Wheels>p>>p>Package List>p>2 x Suitcase Caster>p>8 x Screw>p>>p>Note>p>1. Please confirm that the of the wheel base are consistent with the of our products before purchase, and the and of the products can be used only if they are consistent;>p>2. There will be some deviation in the screw holes that are not original, so the upper side can be installed first, but do not tighten it, slightly move the wheel base to the other holes, and then tighten the screws after the four are on;>p>>p>