3" Nickel Recessed Caster Kit for Large Speakers - 2) 511-2296800 2) F1686/25 Case and Cabinet Hardware 8B Overall dimensions with hardware are:

Overall dimensions with hardware are: 21-1/4" Wide x 7-3/8" Tall x 6-1/4" Deep

The strap needs room to move outward

White Aluminum Wall Mount Panel designed to mount to 16" center studs with enough room all around to cover the cutout

1) Procraft steel reinforced strap handle with T-nuts and machine screws

Overall Dimensions:  7-1/8" x 7-15/16" x 5-5/8"

3" Nickel Recessed Caster Kit for Large Speakers - 2) 511-2296800 2) F1686/25 Case and Cabinet Hardware 8B Overall dimensions with hardware are:PROCRAFT PART #511 2296800 F1686 25 Nickel Plated Recessed Caster Mounting Kit for large Speaker Cabinets. Kit includes: 2) TCH 511 2296800 3" Rubber Tire Recessed Casters with Heavy Duty Nickel Plated Steel Housing. Heavy duty load capacity 130 lbs. per caster. 2) Penn Elcom F1686 25 Rubber Bumpers Feet. Comes with Screws needed to Mount Everything.