S140 adjustable foot is wildly used for S100, S108 upright extrusion. It can be adjusted from 20mm to 60mm, and is often installed to the bottom of the upright extrusion to increase the height of the extrusion, the common height of upright extrusion in shell scheme booth is 2480mm, and with the adjustable foot, it would be 2500-2540mm. When the ground is not flat, you can adjust upright extrusion height by adjusting the height of adjustable foot to make the standard booth more stable. It is made of steel, zinc alloy,with setscrew M4x8 or M4x12 and weights 0.111 kilograms.All of our accessories are easy to install. Thanks to full ranges of accessories, Standard System is able to realize various functional and advanced designs and is easy to install, dismantle, transport and store.