1 Pack Adjustable Jack Post Steel Floor Jack Floor Support Jack Pole Jack for Porch Roof Deck Heavy Load Areas, 23.23"-43.31" Adjustable Height, Black

these are super robust and strong! I use mine to support a large subwoofer box that weighs over 135 lbs to keep it from moving around during driving in a 03' 4runner. I have one anchored against the sub box and the other is anchoring a dual 12v battery bank behind the front seats. These are very strong and the double bolt configuration is nice and the bolts tighten fully and there is NO rattling or noise. If you need some posts to support custom sub boxes BUY THESE. the only thing that these posts dont allow is a swivel plate, but the plate does spin so you can tighten without the entire post turning. however, this is very robust and you could simply get a new piece of allthread and weld a ball/swivel plate to it or just buy a threaded swivel plate to swap out. Build quality: very strong simple build quality Value for money: these are worth the price, they are not cheaply designed Ease of installation: pretty straightforward, they have jack like holes then a threaded bolt that extends pretty far Functionality: very strong, wont move at all, these poles are stronger than other materials around it

This is a solid piece and overall happy with it. My only complaints is it looks like you get two stands but this is only for one. Pictures are misleading IMHO.

Very solid and I was able to use them to jack up a large and heavy piece of furniture successfully.

I have a mini-split a/c and heater in my tiny home. The fan part outside is on a rack attached to the house. When the fan really goes, it shakes the wall! I got these to put under the metal racks supporting the fan. Very easy to use, adjusts in two ways that made it easy to put them under the fan on a hilly piece of ground. Very much worth the money.

Top won’t swivel