Features: Available in 45, 60, and 90minute options, these blanks sound cassettes deliver crisp recording quality with transparent shells for easy content identification, perfect for varied recording needs. Plastic construction ensures performances while transparent bodies allow quick visual differentiation, available in multiple durations for flexible sound documentation. Ideal for journalists archiving interviews, students recording lectures, musicians capturing demos, and professionals requiring analog sound storage solution. Optimized for voice memos in classrooms, conference documentation, live music, speech competitions, and studio grade sound preservation in educational or creative environments. Engineered with smooth glides mechanics, these transparent cassette tapes maintain signals integrity for decades, making it essential archival tools for analog enthusiasts. Specifications: Component: Plastic Size: Approx. 3.9x2.48inch(9.9x6.3cm) Weight: 35g Type: 45 minutes/60 minutes/90 minutes Package Includes: 1x blanks Tape note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.