Magnetic Holder for Expandable Steel Sheet Holder (MK4, MK3, Mini, etc. with 10mm spacing)

Magnetic catch to keep sheets fully engaged in their slots. Should work with most variations and remixes of @Whity's Expandable Steel Sheet Holder, as long as they retain the 10mm spacing between sheets. Models provided for 1, 2, 3, 4, and 5 sheets. Requires 10mm diameter, 5mm thick magnets. I used the magnets linked below, but beware that sellers frequently change their supply so measure what you receive to verify they are really 10x5mm : https://www.amazon.com/gp/product/B0BVH1PLM1 Simply slide the magnets in from the bottom and hold them in place while mounting. The screw hole is designed for a single #6 (3.5mm) button head wood screw. Recommend printing as oriented from STL, using PrusaSlicer's Organic supports.