Hi, this custom designed 3d printed filter adapter for the Insta360 ONE R/RS Leica 1-INCH Mod. I've included 2 adapters in this listing as the printed threads have limited durability. So, repeated screwing/unscrewing of the filters will wear the threads out prematurely. 

There is no need to screw the adapter all the way to the bottom of the thread on the lens mod. When the adapter is screwed on the mod, it will not get loose. The design of this adapter is to allow you to install any 49mm filters. So, play around with it until they are not touching each other.

This is designed to take the 49mm filters as the bigger filter will cost more to buy, and will be visually disproportionate to the device. 
NOTE: This is NOT SUITABLE for the Leica 360 lens. 

For more details, please search on youtube, and you should see a video demonstrating how to use the adapters. Video creator is Imspir3.

For international postage, it will be handled by eBay GSP. I am only charging the minimal postage to post it into eBay's fulfilment centre. The rest of the costs are eBay's handling fees.