Procity Riga Picnic BenchMade from a zinc primed and painted steel frame and 18mm thick High Pressure Laminate (HPL) slats with a mahogany finish, the Procity Riga Picnic Bench and Table set is a very long lasting, maintenance free and eco friendly picnic table option. HPL is made from multiple layers of kraft paper (made from renewable wood pulp) and phenolic resin fused together under high heat and pressure. The resulting HPL is incredibly hard wearing and tough, requires