F Switch Red

Oh my God these are hilarious. I opened one for the picture and it fully exploded, all 4 legs came off and one more loose piece of the top housing. DO NOT OPEN THESE. As a result I didn't open 3 for an average stem length, just the exploded one, hope you all understand. 

Outside of this, we don't know anything about F Switch. They have their own molds, but sellers have also just sent Outemu stuff before so who knows. The LED slot is also vaguely reminiscent of KTT, but I'm really not sure. This seller did also list them as Jiangwan, if that name means anything, or is accurate I'm not sure because they also noted they were silent.