Portafilter funnel with locking prongs (58.5mm)

UPDATE March 2023: There is now a v2 of this model that is attached magnetically (turns out the locking prongs in this one tend to be a bit fragile and can snap off if mistreated).

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A funnel to help filling 58.5 mm protafilter baskets without spilling any grounds.

It features locking prongs that engage with the standard (e.g. E61) 2 lug design.

Due to the locking design this allows e.g. tapping or shaking the portafilter with the funnel in place to settle the grounds.