THIS VIDEO DEMO IS FROM THE MANUFACTURER:
The Eureka Base is a sturdy adjustable metal table base that's made to support a flat table top or a suitcase table top. The base comes complete with a flange that fits any table top you have. Just attach the metal flange to your top with screws!
Opens as high as 46". Collapses down to 26" for carrying. Push button operation for raising and lowering. Bright silver non-tarnish finish. Shown in the photo at three different heights.