gave these guys a go...2 COMPLE sets (so 8 total props) right around $90 bucks.
https://usdronesupply.com/products/dji-propellers-for-mavic-4-pro
I'll let ya know my thoughts
Yes it is legal to in the US to climb to 500 feet above the homepoint as long as you do not exceed 400 feet AGL; however, in his post, the OP said he dropped down to "500' AGL" but we are all are how terms and definitions and descriptions are...
To avoid any confusion, sellers should refer to the propellers the same way as DJI instead of making up their own nomenclature. According to DJI, in the box you'll receive a pair so you would need to install 2 pairs to fly:
IN THE BOX
~ MSRP...
While you cannot always be certain 100% of whatever is inside, you can insert the serial number (found on the box) here to see if the product has been activated. If the original contents have been removed or replaced, this may give you the...