One wheel for back of speakers.
420-WHEEL-TY New Speakermax exclusive. One hard wearing fixed caster wheel with a flush mount bracket. Installs into rear of cabinet. Use as a replacement or custom install. These make a world of difference when you are wheeling into a crowded event. Order at least two for each speaker cabinet. Wheel diameter 2 7/8 Dimensions: 4.0 x 4.0 x 4.0 Weight: 1.5 lb. Box size: 12.0 x 9.0 x 4.0 Box weight: 2.0 lb.