The growing popularity of flip-top caps means that precise cap-to-container alignment is an absolute necessity. Unlike neck orientation features offered on other linear and rotative stretch blow moulding machines, which require the use of special preforms that feature one or two notches on the neck ring, Magplastic offers a solution that works with nearly all the preforms that are available on the market. This neck orientation option can be combined with the preferential heating option, offering the possibility of blowing a wider range of bottle shapes.