Optional Extra Base Socket This Optional Extra Base Socket is for use with all Multi-Station Transportable Jib Cranes for use in other locations. Sockets are 31"H with 17" x 17" floor mountable base. Product Specifications LENGTH INCHES17 WIDTH INCHES17 HEIGHT INCHES36 COLOR FINISHBlue BRANDGlobal Approved CONSTRUCTIONSteel DESCRIPTIONExtra Base Socket MANUFACTURERS PART NUMBERJIB-P-B WEIGHT LBS145 UPC691215024952