Pop'n Music Sanwa Button, switch and spring set (OBSA-100UMQ)

These buttons have a great feeling on but 400g springs is way too heavy just play a bit to make the buttons no stick and switch to 100g springs. Keep in mind that you might need to check your wiring too if it's tight it can cause sticking a lot. Also since it's a 100mm buttons it's very LOUD be careful when your buying them when you have people that can't handle noise. There is a way to make them softer by adding cotton balls but it won't be easy to do consistent inputs

The #1 source for these specialty buttons, packed perfectly and once they were in stock shipped and arrived quickly and without issue. Will keep an eye out on new stock for the future :)

We had a setback in the export (to Spain) but i was informed about the process at all times. The item has arrived and everything is perfect. I will buy here again.
Greetinbs to Martin ;)

For anyone curious about Sanwa buttons and Blue Spring Express, I bought the button set linked here. The package showed up today and I just finished installing everything. Without a doubt, this is my favorite purchase of the year.

All of the items were brand new, had plenty of protective packaging, and Nitram provided amazing support. I am a newbie when it comes to arcade maintenance operations. A few random events stumped me, such as stuck buttons and high pitched resonation. Nitram was there each step of the way and pulled me out of every hole that I fell into.

If you are considering an upgrade, hopefully my recommendation is enough to push your decision forward.

Thanks again, @Nitram. You rock!

Reasonable shipping time and excellent communication, and it's great knowing that the set comes with everything you need.I used these on my DJ Dao controller and had no issues other than some slight nudging when inserting the LED bulbs. Overall, I'm really happy with the quality! These buttons really do elevate play to feel closer to an arcade experience and get rid of the higher frequency resonant sounds that I had when playing with the stock buttons. Highly recommended for those who want a premium experience at home!