PACKAGE QUANTITY --- Price is for 1 pack includes 6 pieces silicone cup lids. Cup is not included. PRODUCT MATERIAL --- Made of good quality food grade soft silicone, BPA free, reusable, environment friendly and dishwasher safe. It can be withstand temperature from the lowest -40C (-40F) to the highest 230C (446F). Keep it stay warm or cold for longer. PRODUCT DIMENSION --- Inner diameter: 3.22 inch (8.2 cm), Outer diameter: 3.78 inch (9.6 cm). Suitable for coffee mug/ cups with outer diameter among 3.46 inch - 3.62 inch (8.8 cm - 9.2 cm). REMINDER --- The mug with handle in middle of the mug or lower would be better. It is flexible and soft for many sized cups options. Please check the size of your mugs before ordering. ( If the size of your mug is smaller than 3.54 inch (9cm), the cup lid can cover your mug but can't make a strong seal. Please don't drink through the lid. ) FUNCTIONAL CUP COVER --- Good to be used at home, office and especially good as a camping cup lid and good choice to be an outdoor cup cover. It is a portable silicone mug lid cover and silicone drink cover.