As above hello, new drone owner in Scotland. Picked up a refurb HS510 which did not come with replacement blades, have scoured the internet today and cannot find them anywhere, manufacturer site links to an amazon page which is out of stock. Thought in the off chance I would ask if anyone has had any luck with these. Its the ones that have two screws (newer version as far as I can see) I did contact the chat page on the Holystone website and was told they could send me some but it all sounded a bit dodgy $1 each (did not tell me if this is per blade, per set or whatever) and then $8 postage which I had to send to a paypal address and then email a proof of purchase etc etc. I actually think I am just going to return the drone as not fit for purpose to be honest. Disappointed as it seems like a decent wee thing Anyways clutching at straws but if anyone has any ideas, I would more than welcome them.