The Sphera bistro tables by Vincent Sheppard have a characteristic rounded black steel base and round table top.
Vincent Sheppard suggest the following maintenance:-
HPL: Dirt does not easily stick to HPL, which makes your side tables easy to maintain. Use a damp cloth and water to clean spilled solutions. The quicker you remove them, the easier.
Use a solution of water and mild soap to clean more stubborn stains.
OAK: Wood is a living thing! We would suggest avoiding exposure to extreme temperatures or temperature fluctuations to avoid cracks.
Regular cleaning with a mild solution of water and natural soap will do the trick! Please do not sand varnished furniture, as this will damage the protective layer and will thus affect the water and dirt resistance of your furniture.