Set of 4 black rubber foot for speaker, diameter 38.65 mm, thickness 20 mm, with steel
Buy Audio Isolation Feet suitable for 3 - 5 inch Speakers, Subble 1.2 (8Pack)
Amazon.com: Reliable Hardware Company RH-1606-8-A Rubber Foot, Black : Musical Instruments
Buy Audio Isolation Feet suitable for 3 - 5 inch Speakers, Subble 1.2 (8Pack)
Adhesive square shaped rubber feet, 13x13 mm.
Amazon.com: Howonder Rubber Feet, Speaker Rubber Feet,16 Pack 40mm x 10mm, Use for Subwoofer Feet, Speaker Feet, Road Case Feet,Furniture Feet (Black) : Electronics
Amazon.com: KROYWACHS DJ Speaker Cabinet Rubber Feet for Speaker Cabinets and Flight Case, Repair Kit Accessories Woofer 4PCS 40x10mm for Home Theater Karaoke : Electronics