The research and technological developments employed by Spencer have, as a general objective, the aim of reducing the cost of purchase and ownership of the trolleys. Our products have the great advantage of having a day to day reliability and a long durability. Only the Z Roller can boast such an advanced technology in its category. The mechanism which determines the adjustability of height is contained and protected in an extruded alloy profile. It is particularly appreciated during pick-up operations where the trolley can be used for the transport of stretchers, pick-up stretchers or stainless steel basins, which are all sustained by robust lateral brackets. Its strong structure, excellent stability and exceptional manoeuvrability, make this trolley extremely trustworthy and durable.