What are these brackets for on soft top?

Hi peeps, i am buying the boyfriend a soft top to go on his freelander, i have one due to arrive tomorrow but i dont think it has the two brackets with it, can someone please tell me what they are for and if it can be put up without it?
Here is similar on ebay:- 111106424132

And if i do need them does anyone have any for sale?

i think they are the left and right lower corner clamps and no you cannot put up the soft top without them, the pair costs about £80 and the LH is out off stock until september
I have a RH for mine but my LH was stolen along with some other stuff and have been unable to acquire one, if you do find some please let me know
The RH is readily available from LR