... one time using,smart caps... 5 gallon bottle cap ,non spill cap .water capMaterial /features:1. All new food- ... colour is available8. 5 gallon water bottle caps ,include cap ,inner plug,can print LOG ,use with heat sticker ... , magnetized water etc drinking water) packaging use. 8. The inner cap opens smoothly an securely when the bottle removed from ... , and good sealing performance ! 5 gallon bottle cap