Please note this is the power supply unit. This is NOT the two pronged adapter between the power supply and the vacuum. Multitester tested for voltage. This is a voltage EQUIVALENT version ADAPTER for iRobot Roomba model 2002. This power supply may work on other models. Please determine compatibility before purchase. Questions are encouraged. Photo is generic. Shape, size or color may differ from photo. Special heavy wrapping is provided to protect the prongs. S H in the contiguous USA is $8.(insured shipping). Please see other interesting items by JGrit. USPS DELIVERY TIME: As stated in the item listing, seller will drop-off your item to the USPS within 5 days of receiving cleared payment. How long it takes to deliver to your door is strictly within USPS control and not within the control of seller. Please leave 5 stars for seller 5 day drop-off time24v500ma. Thankyou.