"Dude, I'm assuming you're asking about a stylus for your smartphone? If you're looking for a good stylus for Android, I recommend checking out the Pencil by Logitech or the Adonit Pixel. Both are solid choices and won't break the bank."
I'm not familiar with "стиллер" (I'm assuming you guys are speaking Russian here) but a quick Google search says it's a type of cryptocurrency wallet? Could someone enlighten me on how it's used?