The inflatable dildos have been a favorite for a long time. Only sometimes they're not so easy to get up in your hole. These firm core versions have a core that's not too rigid, yet firm enough to put a little backbone into things. Grab some lube and you won't have any trouble working you ass open with these great new toys!

Medium Inflatable Dildo - 5.75" circumference x 8" length
Large Inflatable Dildo - 5.75" circumference x 9" length
Jumbo Inflatable Dildo - 9.5 circumference x 10" (insertable) length. (Shown in Video)
(also pictured but no longer available, are the Small R422 and the Mini R421)

All sizes listed are the un-inflated length and circumference.
Most inflatable toys will nearly double in size when fully inflated, so the final pumped up size will vary on an individual basis. Grab the largest size that your hole can comfortably handle and start pumping!