The housing and wheel of the design caster are made from high-quality plastic. The floor-friendly soft running surface is made of thermoplastic elastomer. Its strength lies in its invisibility: when recessed into a hole in the underside of a piece of furniture, the design caster appears to "float" just above the ground, completely unseen from the outside. The soft surface of the wheel ensures scratch- and streak-free mobility on all hard and sensitive floor surfaces. Our quality bonus: Wheels and casters from Wagner are branded products that have been tested for quality, safety, and durability. Wheel diameter 27 mm; construction height 14 mm. Load capacity 50 kg. Housing and wheel made of high-quality plastic; soft running surface for hard and sensitive floor surfaces. Delivery includes: 1 x Roller-Mini caster RO 7072.