Purchased a few years ago and stored. Approximately 34mm x 55mm x 0.6mm Thin enough to fit between a smartphone and its cover. Material: C/C composite, Apollo special catalyst How to use: In addition to carrying it with you at all times, it also works with various electronic devices such as smartphones and game consoles. -------------------- Thank you for viewing. Smoking...None Pets...One small dog It is stored in a place where pets cannot reach, but please understand this before purchasing. Also, while I try to check carefully, it is a used item and I am a private seller, so please forgive any oversights. If you understand that it is a used item, please consider purchasing it.