Made of felt material, it is very light and sturdy, preventing your bag from losing its shape and wrinkling. It has many storage pockets, allowing you to store items from small to large. You can organize and store everyday essentials such as writing instruments, mobile phones, charging cables, cosmetics, and notebooks. It can also be used in bags that don't hold their shape well! PM: Bottom 27*11cm, Height 13cm MM: Bottom 30*15cm, Height 18cm, plus 300 yen GM: Bottom 37*17cm, Height 20cm, plus 400 yen Orders are accepted. Shipping usually takes 5-7 days, but may take up to 2 weeks in some cases. Please understand this before purchasing. It may be folded for shipping; if there are creases, you can restore them with a hair dryer. Due to the handmade nature of the product, please refrain from purchasing if you are overly sensitive, a perfectionist, or have strong preferences. ● Cancellations/returns are not accepted. If there is a defect on our part after product inspection, we will respond if you let us know.