Thank you for viewing! This is a drool cover that can be used on the straps of baby carriers and car seats. ▫️ This is a set of 4. Please refer to the photos for patterns and designs. ▫️ These are used items, and the frequency of use is unknown. There are no noticeable stains, and they were used cleanly. ▫️ Size (see image) When spread out: Approximately 17.5cm x 17.5cm When buttoned: Width 7.3cm Cylindrical circle diameter: Approximately 4cm ● Material: Gauze ● 2 plastic snap buttons They are attached using a special tool, but they may come off, so please remove them from the base. These drool covers have unique designs that you won't see elsewhere, and you can never have too many. Why not try them out casually? If you have any other questions, please feel free to ask.