These are not official Keter parts but of course fit the Keter Work Table perfectly as you can see from the pics. Keter Folding Work Table Compatible. They are made from durable materials to ensure longevity and maximum functionality - printed in PETG material, which is a very durable and flexible plastic made to withstand rain, snow, high and low temperatures with UV resistance which is ideal for this application where it can be used outside as well as in interior spaces like sheds + garages where temperatures can drop.