These fuel bottles are designed specifically to accept the threads on MSR fuel pumps and to easily handle the pressurisation you need to efficiently operate MSR liquid fuel stoves. Now with child resistant cap. Features Designed to work with all MSR liquid fuel stoves Air-tight seal allows fuel to be stored longer by preventing air from entering and degrading fuel A new child resistant safety cap design means direct vertical pressure must now be applied to release for opening to make it difficult for littlies to open the bottle Made from single-piece, impact-extruded aluminum to prevent leaks and cracks Bolstered shoulder and base to resist bulging when pressurised Specifications Camp Kitchen Options Stoves Average Weight 115g (325ml), 160g (591ml), 225g (887ml) Made From Aluminium