IMG 5154  OSP 12 Space Shock Mount Amp Rack Case w/4" Caster Kit/locking front casters/Never Used, not a scratch, brand new/($300) IMG 5156  OSP 12 Space Shock Mount Amp Rack Case w/4" Caster Kit/locking front casters/Never Used, not a scratch, brand new/($300) IMG 5159  OSP 12 Space Shock Mount Amp Rack Case w/4" Caster Kit/locking front casters/Never Used, not a scratch, brand new/($300)