About this item STAINLESS STEEL WATER BOTTLES: Double-wall vaccum insulated water bottles are 100% sweat proof. Good! Keep cold 24hrs, keep hot 12hrs. 2 BPA-free LIDS: Futtumy wide mouth water bottles come with 2 lids- spout lid & straw lid. Notes: straw lid good for cold drinks, and spout lid good for hot drinks. FITS CUP-HOLDER: Notes that 18oz, 24oz water bottles are definitely fits most car cup. Of course perfect for bicycle cup, gym water bottle. All-OZ LIDS ARE REPLACABLE: The mouth opening of different ounces are exactly the same. If you have 2 or more ounces water bottles, 4 lids or more double lids for one insulated bottles. WIDE MOUTH CLEAN EASILY: 2.3 inches mouth clean easierly than narrow mouth water bottles, whether hand wash or dishwasher. Bonus cup-brush also make it easier!