This lid fits on both the Ice Shaker Half Gallon Jug and the Ice Shaker One Gallon Jug. 

Ice Shaker Jug Lids feature a multi-purpose design that lets you sip your drink from the inner lid or pour/chug your drink by twisting off the inner lid to easily pour your drink. When ordering a replacement lid for your Ice Shaker Jug, you can choose from ordering a Complete Jug Lid which includes the large outer lid, the sturdy handle, and the inner lid or you can choose to order only the inner lid by itself.

Please note that the internal jug straw is sold separately.