Hi! Can you tell me for sure if the Crystal jellies anal delight is made of Jelly or Sil-A-Gel? One of my students is doing a review of this item and he says that the package states that (despite the name) the toy is made of Sil-A-Gel, which is different from Jelly. I just want to make sure that he gets the correct information in the review and that we have the right material in the description on EF! Thanks!