Plastic film on both sides, keeps necklaces & earrings from becoming tangled. Easy to slip into your purse. I organized my jewelry drawers & threw out bulky boxes. Buy white ones & you can label the side with a sharpie & stand them up to save space. 1st order was perfect. 2nd order, someone had placed messy stickers on each one. Seller made it right, and I hope they don't do that again. Innovative product!I really like these boxes to separate my earrings, bracelets and necklaces. Being transparent makes it quicker and easier to locate what I want to wear. They stack nicely in the drawer.There are holes in several of the clear plastic parts thus making them useless.smaller then I realizedThis product really works.Worst quality boxes. They came in 1 month. The quality is sorry cheap. Ordered so many them.... and half of them are already broken. Don't buy!!!