I have had this wallet now for a little while and yes, it holds many plastic cards as it says and maintains them very well as far as thickness it is Great !!!.... the material of the item is slippery like a parachute type material .....but I am happy to say I am pleased with the product....as far as durability it is yet to be determined but appears to be of decent quality !!!  Overall,  I would recommend this product !!!!!!