The package includes 5 aluminum turntable 45 rpm record adapters for playing big hole records smoothly with high-quality sound. The tone arm works more stably and reduces pitch swing, allowing for smooth playback of 7-inch singles. The adapters minimize eccentricity and ensure stable rotation for EP big hole records. Made by Milisten, the adapters are durable and practical, with professional design and fine craftsmanship. They are the best replacement for old adapters and ensure fast and smooth processing on the turntable. Overall, these adapters provide convenience and high-quality sound for vinyl record enthusiasts.