GUBE bottom special plates with adjustable feets are adapted for uneven bumpy grounds. To fit the adjustable feets you have to turn it off or in.
The adjustable feets allow a solid stand no matter if there are two GUBES in line  whether there are three GUBES in line.
Tip: For four GUBES in line just use the same element for two twice and so on.

The GUBE bottom special plates with caster wheels make the GUBE mobile. The caster wheels offer 10,5 cm chassis clearance. Two or three of them have a fixing brake to fixed the GUBE on place.

You can upgrade the GUBE basic module with the GUBE bottom special plates at all the time - also years later: without any tools.
Simply put on the GUBE bottom special plate out of MDF nature, MDF black colored through, MDF white coatet with natural brinks, MDF black with black brinks or MDF white coatet with white brinks - finsihed.