i went in to my local store and they said its deranged so i cant get it

thanks for the info,what isle is this in as ill go there today

im unsure of wall studs in my house,(older style house) i've used a stud finder but there pretty hit and miss?would i need a space board on wall to mo ...

could i use this to mount my 75 inch tv to the wall.my tv weighs 31kg this bracket is rated for 40kg?https://www.bunnings.com.au/click-tv-wall-mount-w ...