• DURABLE PARTY CUPS: Introducing TOSSWARE’s Natural Line. Made from a plant-based material, these cold cups hold their shape & will not disintegrate upon contact with liquids. Partying sustainably just got a whole lot easier • PLANT-BASED PLASTIC ALTERNATIVE: What makes the Natural Line so special? Made from corn-derived PLA, these party cups are here for a good time - not a long time • NON-TOXIC & BPA-FREE: Food-safe and BPA-free plastic cup lids for parties, gatherings, or just good old-fashioned get-togethers • COMPATIBLE WITH ENTIRE LINE: Arena cups have a square base & Arc cups have a rounded base - these compostable 96mm lids are only compatible with TOSSWARE NATURAL 10, 12, 16, 20 & 24oz cups • CARE & USE GUIDE: Feel free to reuse, but as a reminder, please hand wash them only with a gentle, non-abrasive sponge as our PLA material is not dishwasher safe