Manual pump-type bath chair. Can also be used indoors. We used it as a portable baby chair for travel, picnics, etc. It's manual, so you can inflate it quickly, which was very convenient! As it's a bath chair, there's a hole in the bottom, allowing for hygienic use! The baby bath has a hole in the back for hanging, so you can hang it on a hook after use for hygienic storage! It will be wiped clean with alcohol and deflated, then slightly compressed for shipping. Please understand that this is a used item before purchasing.