Labor Law §240 deals with devices used in the performance of height-related tasks at named work sites. The devices are ladders, scaffolds, hoists etc., with the statute additionally listing components or accessories of these devices as can be seen in Industrial Code 23 provisions devoted to them. Where defects, inadequacies or absences for need of subcontractor's devices cause harm to their employees, owners and/or contractors for the work are vicariously subjected to civil liabilities.