Designed for larger lighting fixtures, these stands are built with steel legs and steel riser assemblies. These stands provide a stable rolling base for Junior and midsize lighting fixtures. Equipped with universal Posi-V-Lock Junionr Receiver with po up 5/8" male pin, the Senior Stands are made for fixtures weighing up to 88pounds. Please refer to the technical specification for the weight limitations of each stand. Matthews casters are locking and non-marking. Made from steel components - not plastic - and will provide years of durable service.