Kumlais are not made in temples by monks but by local communities for the temples that buy them.
In the Thai Buddhist tradition, monks are not supposed to engage in producing commercial goods or in commercial activities in general. I personally know of two communities that produce and sell Kumlais to temples.
Kumlais aren't blessed by default.
To be blessed, they must be taken to a temple and blessed during a ceremony, for a specific person and a specific purpose.
I don't think the sellers I saw online who claim their Kumlais are blessed actually do it, especially since I've never seen a convincing video of such a ceremony. The only ones I've found look like awkward tourist footage.
Also, to my knowledge, it’s not customary for monks and Thai temples to bless commercial stock for resale outside of the temple grounds. It’s actually frowned upon. I asked my Thai friends what they thought of these claims, and they say it’s almost certainly false. They gave me an example from 2024: a monk who reportedly blessed figurines of Moo Deng, the pygmy hippo, outside the temple grounds. These figurines were intended for resale. The monk was ordered to leave his temple within 7 days. I found a source in English: Khaosod English article. Another friend sent me a photo of a man who doesn’t look like a Thai monk, blessing a batch of lip gloss in a private shrine, not a temple. It’s all she could find online on the subject. What monks do, however, is bless amulets during ceremonies and then sell them to believers on the temple grounds for the benefit of the temple.
Personally, I never considered doing it for the Kumlais I sell.
However, I will happily arrange for a real personalized blessing ceremony for your Kumlais at a temple: see the next section below and the Blessing ceremony story.
It only takes two people to make a Kumlai, not twenty as I've read online.
I know how Kumlais are made; I have seen the process many times. It takes place in countryside communities. Women fill the tubing with gold or silver leaf at home. Then someone collects what they've made. The final steps of cutting and closing the bangles take place in a separate workshop and require only one person.
Kumlais are Thai, not Tibetan or Nepalese.
I have never heard of or seen Kumlais in these countries, and I didn't find any online when I searched.
It seems many Kumlais found online are manufactured in China and sold by wholesalers worldwide.
Some are filled with glitter rather than gold leaf, sometimes just paint.