This is an add on for the TRO Birthing Chair and used in conjunction with. If you have always wanted a water birth, this is the product for you. When its time for delivery, place the bath in the room add the chair in the Birthing Tub (part 1), you and your partner hop on the matching dots and watch your baby be born within 2 minutes. Be sure to choose the "Real Baby Birth doctor pose to activate the birth sequence. Do not be confused with the dots in the original tub, which can be used prior to birth. If you have trouble using this product, please message me for more details. Please remember to leave a rating on products. TY