The items are created by the moulding of a compound made of polyester resin and high quality natural quartz (granite) first choice, which has a white colour. Grey colour is also available. QR elements present a thickness which may vary from 2 to 3 cm, depending on the product typology. The largest products are reinforced internally with two types of glass fibre, thickness 04 and 018. To give greater strength to the shape, a mixture of quartz and resin is applied . This is made of galvanised steel and it is buried in the same polyester resin and natural quartz compound. It is possible to ballast the products with concrete elements for a heavier version. The S-Planter container is made bending and continuous wire welding a steel EN10111DD1 sheet, T. 15/10. On the bottom there are two holes (12 mm diameter) for water drainage. On request these holes can be capped or can be inserted overflow tubes with 40mm height. After the different processes (cutting, bending and welding), the container is subjected to a treatment of galvanisation in accordance with relevant UNI standards and finished with polyester powder coating AkzoNobel with customisable RAL colour.