These Rack Ears are specially designed steel rack ears to fit the Yamaha TF1 mixer into the 1SKB19-R1406 Mighty GigRig or the 1SKB19-R1400 GigSafe. The rack ears will allow the mixer to sit lower into the case allowing the user to mount an optional 1SKB-AV14 AV Shelf and still be able to fit the lid on without bumping the top of the mixer. The Rack Ears come with screws and washers for easy mounting.