this is a good light tuner set for a 5-string bass. maybe not as fancy as HipShot Ultralite set, but twice cheaper and the same weight.
it's definitely a nice upgrade for Ibanez SR, Warwicks and other instruments that come with both fragile and heavy tuners.
the buttons definitely feel like plastic, let's see, how they hold (I accidentally bump things with my headstock from time to time).