Introducing Frank Green's newest accessory - the duo lid pack. Featuring one push button lid + one straw lid plus a strap and 170mm straw [for 20oz or 34oz bottles]. This accessory pack is perfect to replace missing or broken parts, or just to spice up your current drink bottle or coffee cup. The push button + straw lids will fit any size frank green bottle or cup, but the straw is only suitable for 20oz + 34oz bottles.