The GLSTOY Tape Recorder Head Cassette Tape Recorder includes 1 magnetic head with dimensions of 2.4 x 1.6 x 0.7 cm. It is a versatile and practical accessory for cassette tape recorders, with a durable metal construction and easy maintenance. The dual channel recorder head provides good sound recording capabilities, and the replaceable magnetic head allows for simple maintenance and repair. The button accessories included make for convenient operation and control, and the universal design is compatible with multiple recorder brands and models. Overall, this cassette tape recorder accessory is a reliable and long-lasting choice for users.