Two holes appeared in the frame after switching to a slam from a mechanical drive system.
I tried to find an authentic plug, but I couldn't find anywhere to buy it,
and when I tried to get it from eBay, the shipping cost was even higher ㄷㄷ
I searched for a similar silicone plug on AliExpress and
blocked it well at a low price.
They sell them by size, so just buy the one that fits your frame!