Boston Zenith Compact Upstand completes the Boston worksurface & breakfast bar combination & protects paintwork. A subtle grey terrazzo Boston Zenith is a natural looking grey stone effect compact with a solid grey core only 12.5mm thick. Designed to look like a composite with chips of white light grey & charcoal stones for a contemporary take on the seventies favourite Boston Zenith is super tough thanks to its make-up of decorative paper & resin so it looks & performs like stone.