This product has a magnet embedded in the body. You can use it immediately after receiving it.
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It's a moving base, not a moving tray, that you can connect as many as you like with magnets, arrange in any shape you like, and move all at once.
The sides of the hexagons are fitted with neodymium magnets, 2 mm in diameter and 1 mm thick, so they stick together and can be arranged in any order.
We use small neodymium magnets, so they won't stick together if they are more than 5mm apart.
It can be collapsed when storing.
It can be moved smoothly when sliding it horizontally on the board, but when lifting it up and moving it, slide it and place it on the palm of your hand. (See the 8th photo.) While you can freely change the number and formation of your units, they are not very good at moving vertically.