Waste of money!
For SparKIT - Mini Electrostatic Generator
I bought two of this Kits but non made any spark! It's too small in design and is not practical so If you are looking for real Wimshurst machine which can produce some decent electrostatic spark don't buy this product.
Response from SparKIT | Aug. 14, 2020
Sorry to hear you had problems.
We are always happy to work through any issues customers have, and so far have 100% success working with them to get their machines running.
Sparks should be 17 to 20mm long, as described.
We suggest you get in touch, and we'll help out.