The product range tubular linear units has been developed from the standard components of the tubular connection system. The tubular linear units are economical, cost-effective and universally usable. High rigidity, low deflection, high loads, easy handling are ideally combined in this linear unit. Four and in some instances five different sizes of linear units are available for different applications and loads. Guide tubes ranging from 18-80 mm. More than 50 basic versions in 160 variations can be delivered.