This is an OUTSTANDING design. I went on a weekend trip last weekend, and printed a different pill case that looked like it'd be effective. Unfortunately, the lid fit too tight on that one, and pills went flying when I opened it. When I got home, I found this one, and printed it. The lid to each case is easy to remove, and they sit securely in the rack. Plus, your design is very attractive. I printed it in Babmu Sparkle Gray PLA and Bambu Marble White PLA, and the rack in Overture Black PETG. Came out outstanding. Thank you for an AWESOME model. P.S. If there is anything I could ask for, it'd be a set without the dividers, but that's a VERY minor issue.