The Topeak Ninja CO2 Plus Bottle Cage is ready to spring into action when needed and is the ultimate quick fix. Including the Micro AirBooster & 2 threaded 16g CO2 cartridges make fixing flats easy with quick access by a simple twist. Top Features of the Topeak Ninja CO2 Plus Bottle Cage Easy access with a simple twist Integrated tyre levers 2 threaded 16g CO2 cartridges Compartment for CO2 inflator & cartridges Cage material: engineering grade plastic Inflator material: CNC aluminium Weight: 226 g About Bottle Cages Water bottles and cages are essential items for your bike, fluid replenishment is essential for long term activities and fitting a water bottle and cage to your bike is the perfect way of keeping you hydrated. Studies show that loss of fluid equal to 2% of your body mass is sufficient to cause a significant decrease in performance. Bottle cages have also received the lightweight treatment with materials such as carbon, titanium and alloy often used. These cages will accept water bottles from 500ml up to 1,000ml, making it possible to carry 2,000ml of fluid on your bike. It's also worth using an Energy drink whilst riding as these will help replace minerals lost through sweating. Details... https://www.topeak.com/global/en/products/ninja-series/949-ninja-co2+ Free pos w.m. Sabah sarawak add Rm10. More details pls see picture. If my phone off,pls email me,maybe I oversea.thanks. My shop at teluk intan,perak.area around super market TF. Email:edwind38001@hotmail.com Tel:012-572 9321