The body appears to be about 3/8" diameter on the two I saw the other day at Do-It. The bodies are maybe 5/8"-3/4"-7/8" in length .....somewhere in that ball park.
When I was at the Do-It plant last week Jerry had little piles of these all over the studio benches in different color combinations. I got a great first hand look at them , but I never really paid much heed to the body size since what I saw appeared adequate for rigging without a fear of tearing or ripping.
Crappie and panfish anglers will find that the 2 1/2" bait fits the bill. I am always looking for transition baits to use between the heat of summer and when the fish put the feed bag on in the fall and I really think this one will be one of those "great" baits and I think that crappies will chew on this right up until the water starts freezing in the deep fall. For the walleye angler, the larger of the two baits will work for you and is a profile absolutely unknown on the walleye scene....these are way different than a reaper and sting-ray styles of baits that some walleye guys use. I see either size as a dynamite do-nothing bait...one dropped down on a jig and held a foot off the bottom with the rod in a holder while the boat drifts along. The " do nothing" approach is a killer at times during the cold water bite of winter and relies on the action given while moving slowly. This bait has walleye killer all over it.