If you have a TIG welder it's nice to have spare cups, collets and gas-lenses, which is why I bought this kit from Banggood. Unfortunately, because it was all just thrown in a ziploc bag with a thin layer of bubblewrap around it, several of the cups were damaged in transit. Unacceptable!
The quality is also pretty ho-hum and several cups were damaged in transit so I would not advise buying this product unless they start packing it properly. I would suggest that if you're looking for a better source of torch accessories you check out Jodi's YouTube channel. I'm not associated with Jody in any way except as an avid subscriber to his channel.
His channel is filled with great advise for welders and well worth subscribing to if you're someone who glues metal together (or wants to).
Banggood product link:
Jody's YouTube channel
His online store:
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