These Maxell UDXL reels don't come up often and most times are

Audiochrome: Cassette tape measurements: Maxell UD-XL, UD-XLI, XLI

The journeys of a vintage audio geek (Netherlands)

Sticky Shed on Reel 2 Reel

Scored a lot of 200 cassettes, all type ii, with paperwork of

Maxell UDXL / XL1 High Output Extended Range Tape - Reel to Reel

Did that Dolby thing ever work?

Maxell UDXL / XL1 High Output Extended Range Tape - Reel to Reel

The Maxell Cassette Tape Collection

Reel To Reel Tape Recorders / Decks… Ready to GO! RESTORED