The unassembled system kit includes
SLW-1040 W-Double Rail Motor System with 4 Floating House Bearings (from WJ200UM#10)
and right trapezoidal TR10x2 threaded spindle (not drilled).
Includes accessories for assembly as shown in the item picture.
Properties :
Low thickness and compact
High rigidity
Fully supported
Hard anodized aluminium rail
Chrome-plated zinc flanges