This lifts spool holders (Creality Ender 3 Style) so the spool can pass over the Wham Bam HotBox should there be any interference when using without. Just print at any height just by changing the Z scale in the slicer.

Measure to estimate how much higher you need the spool holder to be to clear the top of the HotBox, and adjust the Z scale in yours slicer.

However, you will need some longer screws to compensate for the added extender, so you will need M5 screws, and depending on the height you printed the extender you will need to add that to the original length of the M5 screw which is 8.

So if you printed a 12 mm lifter you will need 2 M5 x 20 screws, here is a mixed set on Amazon: https://www.amazon.com/DYWISHKEY-Stainless-Washers-Assortment-Wrenches/dp/B08QDHMTSL/ref=sr_1_1_sspa?crid=G0HTE0XM51ZQ&keywords=m5x20+screws&qid=1649938891&sprefix=m5+x+20+screws%2Caps%2C77&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyMjJMNjhMTUhJTE9KJmVuY3J5cHRlZElkPUEwMTc2Nzk2RzNVMVJWVzIxQklGJmVuY3J5cHRlZEFkSWQ9QTAwNzU5MDgyMVlHTjVLVDFaVkJDJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

or get just the size you need: https://www.amazon.com/NGe-M5x20mm-Button-Socket-Threaded/dp/B08GGYTZBF/ref=sr_1_6?crid=G0HTE0XM51ZQ&keywords=m5x20+screws&qid=1649938891&sprefix=m5+x+20+screws%2Caps%2C77&sr=8-6