According to a post by Klipkaddi® on its Instagram page, the new tier cake carrier has a vent which you can close or open as desired and it will be up for crowd-funding before its launch in November 2018.

Read the press release below.

The KlipKaddi® design has now been finalised. Working with my new CAD designer James we have added the functionality for vents. I love the new design we have come up with! 💛💗💙 This allows a cake to breathe and not sweat during transportation. *
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The vents can be opened and closed very easily.
Closed when carrying a cake to the car in wet weather conditions or in storage to stop dust particles getting inside.
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Now this stage has been completed, we can move into the next phase of getting the technical requirements finalised, manufacturing costs and a price per unit.
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Then the Crowd Funding strategy can commence. My deadlines are very tight and I aim to get this into production for October.
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The primary goal is to have KlipKaddi® to market for @thecakeshows November 2018.
I will need so much help to make this happen, I thank everyone for the support so far.
KlipKaddi®