I used it for filling the part to attach the fan of the PC case. Cospa is good as anything is fine as long as it is plate-like and thin.
Ease of processing is slightly stiff but can be processed with scissors and hand drill.
Personally I think that if there is a slightly smaller size ... I think.
There is durability in the underlay of the carrying bag, just right. Previously I used cardboard, but it was not durable and was replaced immediately. Since it is a polyplate, it can be used without replacement, so it is saved. Easy to process, it can be cut freely with a cutter, so it is excellent.