The Norelco Audio Cassette Tape Case is a hard, transparent, plastic cassette case that holds a card and a cassette. Cassette is not included. 200 pack.
MPK audio cassette jewel case clamshell box album plastic packaging
Clear/Red Tinted Norelco Case for Audio Cassettes - Cassette Boxes (Norelcos) - Audio Cassettes - Duplication.ca
Cassette case - Etsy France
Cassette jewel case wall mount. My wife always talks about these tapes but they've been in a box for 25 years. Made it from a CD case wall mount. : r/cassetteculture
Amazon.com: Clear Norelco Cassette Case (10 Pack) : Home & Kitchen