My take on the Time-Turner from the Harry Potter series. I have included materials needed here, but I also did an instructional video on how to make and assemble this: https://youtu.be/9TWm0LgSOBc Please note that the best way to show your appreciation and keep up to date on my latest 3D printing projects is to head over to my YouTube channel and subscribe! https://www.youtube.com/channel/UCeQR9E-MPwBqEpuaIJiE4CQ Note: The hourglass portion is not 3D printed. I have listed my Etsy source for the hourglass and I also listed the dimensions of that hourglass on the BOM (6mm Diameter x 28mm Long) if you want to put something else at the center. STL quantities to print: Inner Disc, Time Turner {QTY 1x} Middle Ring, Time Turner {QTY 1x} Outer Ring, Time Turner {QTY 1x} Knob, Time Turner {QTY 2x} Holder, Hourglass, Time Turner {QTY 2x}