These are vessels that they would have used for cremated remains. On the far right is a marker for a burial site.
The city of Pompeii is a partially buried Roman town-city near modern Naples in the Italian region of Campania, in the territory of the comune of Pompei. Along with Herculaneum, Pompeii was partially destroyed and buried under 4 to 6 m (13 to 20 ft) of ash and pumice in the eruption of Mount Vesuvius in AD 79, and it was lost for nearly 1700 years before its accidental rediscovery in 1749. Since then, its excavation has provided an extraordinarily detailed insight into the life of a city during the Pax Romana. Today, this UNESCO World Heritage Site is one of the most popular tourist attractions of Italy, with approximately 2,500,000 visitors every year. The above is an excerpt from Wikipedia.