Thank you for your interest in our popular Longchamp Le Pliage S size bag insert. This is a handmade item. My specialty is woodworking, but after my daughter asked me to make one, it proved popular, and now both my daughters and my wife use them. I am offering them at a low price so that everyone can use them. Made of 0.75mm thick PP sheet. (Matte or glossy finish, depending on material availability.) The corners are rounded to prevent scratches on the bag. It should be sufficient for most items that won't cause the bag to lose its shape. (This thickness is sufficient for this size, but if you prefer two layers, please purchase the separate set of two. We also offer a thicker 1.0mm version.) Also, because it is milky white, you can easily find coins or other small items that fall to the bottom. As this is a handmade item, there may be slight imperfections, but it is finished to a practical standard. The size is based on a Longchamp Le Pliage S size bag (model number 1621, bottom size approximately 22 x 14 cm). Please note... the bag is not included. Thank you. Instant purchase OK