What is the point of 10 inch reels?

Akai 10inch reel 1/4

10 Audio Tape Reel BOXES for magnetic audio tape Reels.

ANALOG TAPES — CARTON of Burlington Recording 1/2x 2500'MASTER Series Reel To Reel Tape 10.5NAB Metal Reel 1.5Mil

Shop AlumaReel Propane Hose Reel - 10 Inch 1HR-100 - 1/4 LH B Fittings

10 INCH OPENING 3 Hole 1/4 10 Inch Empty Reel for Reel To Reel Tape Recorder $50.19 - PicClick AU

TEAC TZ-612 Reel-To-Reel Adapters for 10-Inch Reels

Specification:, Item Type: 1/4 10 Inch Empty Tape Reel, Material: Aluminum Alloy, Applicable Tape: 1/4 Inch, Reel Diameter: 10 Inch, Application

1/4 10 Inch Empty Tape Reel Aluminum Alloy Reel Tape Recorder Accessory Empty Disc Opening Machine Parts For Nab, Tape Reel To Reel Recorder

Is 10.5 inch worth it? : r/ReelToReel

1 Pair Nab Reel Hub Adaptors 10 Inch Reel to Reel Tape Recorders Nab Reel Hub Adaptors Polished Aluminum Universal Loading Device Opener for Studer for ReVox for Akai for Teac Red

ANALOG TAPES — 10.5 inch reels

Scotch 10″ Empty Metal Reel, 1/4″ tape, Classic 4 Window Silver, New Box + Bag - Reel to Reel Warehouse