A CD that explains the theory of relativity with illustrations. - Title: Correct Theory of Relativity - Rental: Rental Product Thank you for looking. This is a CD. It has been purchased and stored at home. Immediate purchase is OK. It is first come, first served, not by comment order. We generally do not accommodate holds or dedicated listings. [Confirmation] Playback has been confirmed. [Condition] This is a rental return. Please note that the condition is poor. The disc has scratches, dirt, stickers, and other damage. Playback has been confirmed. The liner notes have scratches, folds, dirt, and other damage. The case has many scratches, many scuffs, discoloration from age, tears, many stains, many stickers, and is in poor condition. There is no obi strip. No other accessories are included. This is a used item, so please refrain from purchasing if you are looking for a beautiful item or are sensitive. [Shipping] Shipping method is anonymous. It will be disinfected, cleaned, wrapped in cushioning, and shipped. There are no smokers in the household. We have a cat. We take great care to ensure that no fur is attached when shipping. Please feel free to contact us if you have any questions. Thank you.