SOLO® Lumina Translucent Plastic Cups. Translucent plastic cups for cold beverages. Sturdy polystyrene plastic. Sidewall ridges provide extra support.Translucent coloring allows identification of contents.Perfect for soda, juice or other cold beverages.These plastic cups are made from strong polystyrene. Their sidewall ridge-construction provides extra strength to the cup and their translucent coloring allows you to easily see what is inside. Includes 2500 cups.