The Cartridge is the Knob! Secure Presta / Schrader Threaded head prevents loss Precision Machined alloy for long life Compatible with CO2Pump for a 48 gram total Pump option! Comes with our Compressor Adapter for unlimited inflation! UPC 689466922226 ASIN B08BW18YHW Color Red Style Micro Compresor Kit Brand Name Prestacycle Model Name Prestaflator Micro Unit Count 1 Count Hose Length 5 meters Manufacturer Prestacycle Model Number 0689466922226 Power Source Battery Powered Material Type Aluminum Additional Features Portable Included Components Adapter Manufacturer Part Number 0689466922226 Item Dimensions L x W x H 6 L x 3 W x 6 H Recommended Uses For Product Air Brushing, Drilling, Nailing, Spraying