What is the point of 10 inch reels?

ANALOG TAPES — 10.5 inch reels

Shop Diamond Welding Lead Jump Reel - 10 Inch JMP10BLK

Buy Vintage AMPEX GRAND MASTER 10 INCH METAL REEL WITH HALF INCH REEL TAPES Sale Pune-India

Brand new! 10.5 x 0.5 NAB metal reels in white setup box for half inch tape. Holds 2500 feet of 1.5 mil tape or 3600 feet of 1 mil tape.

Brand New 10 Inch x 1/2 Inch Metal Reel w/Box for Half Inch Audio Tape

1/4-INCH TAPE SPLICING Kit for 10-inch Reel - Metal Tape Reel Leader Tape Kit $34.09 - PicClick AU

RECORDING THE MASTERS 1/4 inch NAB Metal Reel - 10.5 inch — AMERICAN RECORDER TECHNOLOGIES, INC.

Spec: Item Type: 1/4 10 Inch Empty Tape Reel Material: Aluminum Alloy Applicable Tape: 1/4 Inch Reel Diameter: 10 Inch Application: Universal How to

1/4 10 Inch Empty Tape Reel, Recording Tape Reel, Aluminum Alloy Reel Tape Recorder Accessory Empty Disc Opening Machine Parts for Nab (Blue)

10 Inch Fire Hose Reel, Packaging Type: Roll at Rs 4500 in Navi Mumbai

GUANN-MING PLASTIC INDUSTRIAL CO., LTD.

Specification:, Item Type: Empty Reel, Material: Aluminum Alloy, Color: Red, Applicable Tape: 1/4in, Reel Diameter: 10 Inches, Applicability

Metal Takeup Reel, 6 Hole Low Noise 1/4 10 Inch Empty Reel For Reel To Reel Tape Recorder

Reel to Reel 10 Inch

Part Two: Ken Kessler's review of RX Reels 7 inch Production Reel

I do not know anything about reel to reel. This is on FB marketplace for 100$ is this worth it? Does this take 10 inch. If not should I wait and look

New 1/4 10 Inch Empty Tape Reel Nab Hub Reel-to-Reel Recorders Accessory Empty Aluminum Disc Opening Machine Parts 10 Inch Opening : : Tools & Home Improvement