Put value first – choose an economical option for your SOLO® cold cups. Handy lids seal with a tight snap, ensuring excellent leak-resistant performance. Customers appreciate the easy-stab, X-cut straw slot and pushdown identification button options. Odorless polystyrene keeps beverages tasting as they should, without the hint of a flavor alteration. Convenient sizing design allows you to use one lid model for up to five different cup selections. Identification Buttons. Fits: 12 oz to 24 oz Cold Cups; Material(s): Polystyrene; Color(s): Translucent; For Use With: RP12SP-00055; RP16P-00055; RSP16P-00055; RSP21P-00055; RSP22P-00055; RP12SP-J8000; RP16P-J8000; RSP20P-J8000; RSP21P-J8000; RW16BB-JD110; RS22BB-JD110; RW16-00055; RS22N-00055; RW16-J8000; RS22N-J8000.