Something different with Speedstacks G5 stack mat compared to other mats is that you can click the Speedstacks G5 Pro timer into place on the mat, so that it is completely stuck. This is the official mat from Speedstacks used in speedstacking competitions.
Speedstacks G5 stackmat
Speedstacks G5 stackmat is the mat for the new SpeedStacks G5 Pro Timer. This mat cannot be attached to other timers. The mat absorbs the impact from the cube when dropped onto the table. It can also be used as a base for speedstacking. You can buy the mat together with the timer at a reduced price here.