#1
This is kinda a stupid question, but I was wondering what that black round thing that seems to come with all MXR pedals is for? I have a Smart Gate but I got it used so I don't have one. Is it just to cover the knobs so you don't accidentally turn them?
#2
Protects the knob from scuffs, also can allow you to tweak the knob with your foot while playing. You can buy them for a few bucks.
Ibanez RGT6 EXFX
Fender American Stratocaster
Epiphone Slash Goldtop Les Paul
Carvin DC-135
Washburn G-5V
Taylor 214CEG

EVH 5150 III
Peavey 6505+
Line 6 Flextone III
50s Valco Supro