Holder for 6 coasters

This is a coaster holder for 6 coasters. Their dimensions are :
Length : 4,15 x 4,15 inch (106 x106 mm).

I made 4 small notches. This allows to hold the coasters with an elastic band.

I bought the coaster at Amazon https://www.amazon.fr/dp/B01FBF8ZL4/ref=cm_sw_r_cp_ep_dp_3vGTAbV2DXASM