The LS4 Air Stand is constructed of lightweight yet strong aluminum. It uses a reliable air cushioning system in all column riser sections to prevent accidental 'falling' of a light. The column locks are strong and keep their adjustment over time. And the flat black finish will avoid unwanted / unexpected glare and highlights during a shoot. This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects and/or other reproductive harm.