Use these on Sound Citys mostly. 10mm deep, 38mm across. Also function as rubber bumpers for whatever.
Cello Rubber Endpin, 4PCS Black Rubber Tip for Cello Endpin Instrument, Double Bass Endpin Protector Non Slip Cello Spike Stopper Rubber Cap for Professional Violinist or Violin Lovers
Fender channel selector guitar amplifier foot switch pedal Ch Select Effects
PUNK Black Walnut Wooden Foot Stool For Guitar Foot Rest
NOS 4 Pcs DAISY RUBBER FEET FOOT CAPS 50s/60s Bass Drum Spurs Ludwig Leedy 3/8"
Konig & Meyer Rubber Leg Foot (19mm) for Various Stands x 3 - K&M
PEARLoriginal Traction Rubber Grip Foot Board Kick Pedal Bass Drums #283
