The package includes 5 aluminum vinyl record adapters designed to improve the stability and sound quality of playing big hole records on a turntable. The adapters are designed with precision to minimize eccentricity and ensure smooth rotation of the record. They are durable and practical for long-term use, suitable for professional and home use. The adapters increase contact between the record and platter, improving sound quality while reducing resonance and vibration. The tone arm works more stably, reducing pitch swing and ensuring smooth playback with good sound quality. The product is from jojofuny and guarantees software updates.