... .Package: woven pla 1.Products:Adjustable Jack Base, Adjustable Crew Jack Base, Adjustable Hollow Base, Adjustable Solid Jack Base 2. Material: Q195, Q235 ... 4. Customers' sizes are accepted 5.Specification and detailed sizes Jack Base PipePlate30*600mm(solid)120*120*4mm32*600mm(solid)140 ... *600mm120*120*30*3mm6. Products picture show: scaffolding U head Jack base