The package includes 2 recorder magnetic heads in silver and green color. The heads are made of metal and are durable and long-lasting. They are compatible with a wide range of recording machine models and offer dual-channel recording capabilities for a more immersive listening experience. The cassette tape recorder magnetic heads are easy to install and use, suitable for both beginners and professionals. They are designed to replace old or broken parts and provide a good audio experience. The product dimensions are 2.3 x 1.5 x 1 cm and it is manufactured by CATIEBYE in China. The ASIN is B0D7TW6D2T and the item model number is BJ2L002MRM12027UUMV85U.