Furniture Casters,Caster Wheels,1.5 Inch Stem M11 Pin 40mm Office Chair Furniture Trolley Silent Universal Swivel Transport Wheel No Brake for Hardwood Floor Carpet 5 PCS -250KG(Spring Combination)

Premium are designed to protect laminates, tiles, slate and all other hard floorsMade of the highest quality materials, polyurethane PU and double bearings.Soft polyurethane wheels prevent scratches and damage to the floorBeautiful design in black and white.Measures:Load capacity: 550.0 poundsMaterial: Polyurethane + Cold Rolled SteelWheel diameter: 1.5 inchesBolt size: M10*15mm, please confirm the size before purchase.Package includes: 5 piecesadvantageNo need to use floor mats at home and in the officePolyurethane wheels prevent scratches and damage to the floor, silent, safeVery easy to cleanLithium-based grease lubrication for smooth motion

• High quality: the top is made of precision steel ball plate, flexible steering, double bearing, quiet and wearable PU wheel, 360 degree rotation, quiet rolling, smooth running
• Universal size --11mm*22mm universal sized Stem,fits all office chair bases with 7/16" industry standard mounting holes. （note: interface installation size is 11 mm, Please purchase according to the needs of your chair.）
• Product size: wheel diameter is 40mm/1.5 inch, stem diameter is 21mm, thread length is 15mm, installation height is 60mm, suitable for home, office, conference room, study room, etc.
• Large load capacity: thickened 1.8mm cold-rolled steel plate, uniform thickness, good gloss, pressure and durability, each wheel load 50KG, one set includes 5
• Spiral casters are very easy to install