Reddit reviews AIZESI 2PCS Spring Tension Curtain Rod, 16 to 28-Inch (Tension Rods-15.7-28inch 6PCS)
We found 1 Reddit comments about AIZESI 2PCS Spring Tension Curtain Rod, 16 to 28-Inch (Tension Rods-15.7-28inch 6PCS). Here are the top ones, ranked by their Reddit score.
6PCS small tension rods15.7-28inchThe Curtain Rod Adjusts from 40 to 70CM,diameter:10/13MMEasy to adjust,No tools needed,No drilling,No rustThese Rods contain stainless steel SK8 strong rough spring,Tension Rods Load 2.2IB (approximate)Spring Rod suitable Kitchen Tier Window Short Curtain, Hanging Storage
Mine aren't in sunlight, so I don't have that issue.
You can buy doors for these Billy Bookcases though: https://www.ikea.com/au/en/catalog/products/S09184486/ These are glass, so not too sure how they'd go if in direct sunlight if better or worse, but would be good for dust.
Alternatively, if you want to keep it completely away from sunlight, add a curtain rod. These would do the job fine and you can throw a blackout curtain over it. No additional screwing necessary - only downside is that you the curtain may brush against the manga if you store them at the shelf edge like I do. Otherwise you could also add a bracket on the sides and drop a curtain rod in, so it's spaced away from the shelf. Heaps of options :)
Over time (several years), most pages will yellow, but you can reduce it by keeping it out of direct sunlight.