DND Spell Tracker with Card Box

I'm new to DND and I wanted an other way to track my available spells without the character sheet. That's the start of this spell tracker. FeaturesBox for all spell cardsQuick card holder for up to 15 prepared cards Sliders to track available spells per levelRed silders to mark spells as not availableNo glue requiredBox Version or single version without card boxUse Customize to increase card box holes or the number of quick card rowsAssemblinginsert slidersadd insert on top of sliders and press the little noses downif it doesn't work, you can cut of the little noses and use glue instead, but I hope it will work on your printers as good as on my printer