This is a modular magnetic (6mm dia) card holder/stand for playing cards or for board games that require cards.

This would suitable for people to struggle to hold many cards, children who can't hold many cards or anyone who wants to eat or drink while playing games without having to put their cards down on the table! 

This stand has plenty of room for getting cards in and out and doesnt cover any of the cards should there be text symbols that need to be visable on the bottom of the card.

This stand has holes that suit magnets which are 6mm diameter and 3mm thick. Here is a link to the ones I used:

https://www.amazon.co.uk/gp/product/B07GFK5XFC/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

The magnets are not necessary to use the stand but help make sure the stands stay together while in use. 

A single stand is 130mm wide.