I love the 4" Mini Magnetic set! It's beautifully made. The magnetic pieces have a classic shape, stick firmly, and you can identify them easily even though they are small. The board has a rich wood tone.
Here's how I personalized my set for traveling on a plane.
I initially bought the 8" Play-Keeper Magnetic Chess Set with the intention of using it on vacation to set up positions from a book, and being able to put it away with the position set up when the flight attendant came with snacks. However, it took up most of the room in my satchel and so was not practical to travel with, so I use this set at home. It's also a beautiful set. The 4" set looks identical to the 8" set, only scaled down.
I was inspired by seeing the Drueke Magnetic Set in your video of travel sets and bought the 4" Mini Magnetic Wood Travel Chess Set which is the perfect size, but you can't put it away with a position set up. To make it a "play-keeper", I bought a 6.3" x 4.33" x 1.38" metal tin box from Amazon and printed and taped a paper board inside it, and it's perfect! The box also gives you room to secure the captured pieces. It can be improved by using a slightly taller box that would accommodate the beautiful wooden board plus the height of the king. I attached pictures of the set in the tin box.
Thank you for your obvious passion for chess and making high quality sets available at reasonable prices.