Adjustable screw jack stands. Levelling stands. Fabricated from stainless steel grade 316. Used but only a handful of times. They can adjust between 955mm to 1280mm but could be made smaller if you cut the tube to desired length. Base 150x150x6mm. Tube 26mmø with 3.2mm wall thickness. 20mmø threaded adjuster. More dimensions on photos. Many uses for these but can be left outside due to them being marine stainless steel so will not rust. Would be ideal for boat yards and car garages. Also good for holding a long length at one end whilst drilling a hole in the other end using a bench drill. Any questions please ask. Can be posted or collected from Chorley Lancashire area. Thanks for looking.