Motor to power sewing machine or overlocker

Having had some bad experiences with other companies claiming their extension tables were "universal fit" and that being very far from the case, I made a point of checking via email that this one would fit my machine; this query was very quickly dealt with - on a Sunday! - and I subsequently placed my order, which was an extremely easy process, even though I am far from competent with technology - more to do with my age than anything else! I just have to wait for my extension table to arrive now.