cleaner and demagnizer For Mosta audio cassetts players made car, Home, or portablecassette players Automatically reverses when finished! Advanced be kind rewind technology Demagnetizes and cleans , capstan, pinch rollers. The tape can be used over and over until the liquid is finished. Every time you play, forward and rewind an tape cassette, it leave oxide and other residues on the cassette player's . This cause unwanted noise and lower quality while playing or recording and reduces the life of your device. Why You Need It?Clean the player and maintain playing out premium sound quality. Scenes to be Used:Multiple usage scenarios, home cassette player, car cassette player, etc. Easy Operation: Put 3-4 drops of cleaning liquid on the cleaning tape and play as normal cassette. 100% and high quality Size:10 x 6.5cm / 3.9 inch x 2.6 inch Colour:As Shown Material:plastic Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 10 * Cleaner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.