Hi Parklon also has cheaper range of mats made from PE material. It starts from $75. The L size is about $125 with one sided print. It is still non toxic, lightweight and 16mm thick. The expensive range is made from PVC material and really retains the shape even after long period of usage.
You can also check out 3M puzzle mat which is pvc and non toxic and allows you to have different configurations and size of your mat.
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