This pack of Titan Clear Plastic Lids for 1 oz Portion Cups is a must-have for any catering business. The polyethylene plastic lids are clear and come in 4 packs of 300, providing 1,200 lids in total. The Model B1P12L is compatible with the Costco item 1554137, 1 oz polypropylene portion cup. Keep your drinks and snacks securely contained with these high-quality lids!