Your cooler turns into a "utilizing" cooler!

Easy installation air pump kit with book holder.
For coolers that utilize horse mackerel and shrimp.
Your cooler turns into a "utilizing" cooler.
* Vacuum insulation coolers cannot be drilled.
* If you make a hole at high speed, it may melt depending on the material of the cooler. be careful.
* Be careful not to get injured when drilling holes.
* If you insert the plug all the way in, it will be fixed, so please do not insert it all the way until the final installation.