Practical Book End Holder

A real 3D-printed bookend shouldn&#39;t be a perfect right angle —it should be 87°.That tiny tilt helps books lean naturally and stay in place.At 87°, it prints clean — no supports needed.However, you can easily scale and print it to a even larger/smaller size!It&#39;s super thin, but surprisingly tough.The thickest part is just 2 mm,and with two reinforcement ribs, it&#39;s almost impossible to bend.All the edges are rounded, so your books won&#39;t get nicked or scuffed.It&#39;s a super practical design,but on the outside, it looks plain — maybe even a little too simple.I used to worry people wouldn&#39;t like something so ordinary. But, my mom once told me,“Even from an ordinary family, a big star can rise —just like your favorite, Cristiano Ronaldo.” And that hit me.Those two ribs on the back?They&#39;re like Ronaldo&#39;s mom and his fans —</strong