The package includes 5 x Vinyl Record Adapters made of aluminum to minimize the eccentricity of EP big records and make them more stable. The special design and fine craftsmanship make it the best replacement for old, broken 7 inch Vinyl Record Domes. The tonearm works more stably, reducing pitch swing for smooth playback. The precision design minimizes eccentricity for smooth rotation of big hole records on turntables. The adapters are durable, practical, and suitable for both professional and home use. Overall, these adapters are professional, affordable, and reliable for vinyl record playback.