This is a rare 1978 Blondie Heart of Glass 12" vinyl single on Chrysalis Records. The sleeve is also graded as Excellent (EX). The single features the iconic hit "Heart of Glass" and is a must-have for any fan of disco and 1970s dance & electronica music. The vinyl is made of high-quality material and has a speed of 33 RPM. The record label is Chrysalis Records, and the release title is "Heart of Glass." The case type is a cardboard sleeve, and the edition is a first edition. This single is a true gem for collectors and music enthusiasts alike.