Gridlok Steel Shelf Spacer. 1.5″w x 15″d it can be used inbetween Gridlok shelves when connecting across two joined Mobile Tool Board Workstations. This accessory can be me used in multiple applications beyond its original intent, limited only to your imagination. Integrates with Gridlok metal pegboard / tool board on Flextur products. Easily moved or relocated to the optimal location for maximum efficiency. American Made in Dalton, Ohio U.S.A.