Magnetic index card holder designed for pallet rack labels or recipes on the refrigerator. Outer edge dimensions are approx. 3.22" x 5.22" x 0.275" or 81.8 mm x 132.56 mm x 6.985 mm.

I used ½" x 1/8" rare earth magnets that snap into the pockets on the backside, which are 0.5075" diameter x 0.116" depth (or 12.8905 mm x 2.9464 mm deep). No glue needed (but time may tell differently with the AZ summer heat).

Printed with tree supports (auto), using a a pointed drywall putty knife to remove the supports in the slots being careful to not break the thin overlap. Can be printed without supports on end with the slotted opening upward however it takes longer to print. I also printed one flat without supports however the open end for sliding the index card in gets a little distorted. I'm sure some of you expert user can revamp it to a better model. Feel free but please share.