C02 emergency inflator $ 11.23 The main parameters Name: CO2 inflator Material: Aluminum Alloy Surface: Anodized. Pump color: silver Application: hold 16g CO2 storage tank (not included) Size: Bottom width 2.6cm/length 13.3cm Name: CO, pump Material: Aluminum alloy surface anodized size: 30*54mm Gas mouth: suitable for American/French mouth