Clear plastic lid creates a snap-tight seal for leak-resistant performance. Pre-cut straw slot allows easy access to beverages using a straw. Odorless design prevents altering the taste of your beverage. Lid is designed for use with Dart TP9R, TP12, TR16, TN20, TN22, RTP9R, RTP12, RTN20, RTP9RBARE, RTP12BARE, RTN20BARE; Solo P12S, P12SB, P12SR, P12SW, P20 and P20W cups (sold separately).