the little white clips that attach have two little prongs and you need to bring the wire corners together then push them on ...it should show you on the directions......if you mean the clear clips ...the knobs/button fit in between the wires...and snap on...from INSIDE the cage while the lil white ones go on from the outside of the cage...the pictures on my box it came in even show it clearly.
this shows the clear ones
and this shows both clips
lol ahall some just have trouble with directions i guess
anyway the LARGER clear ones if you look close the round part is on the outside of the wires while the flat part goes inside and clip between the wire bars
the lil white ones just bring the wires together and snap them on...look close at the pictures