I have posted a picture of the old, thick, heavy Oster blender jar base next to the new, thin, lightweight model. The Oster blender jar base being sold by Amazon matches the unit shown on the right of my picture. It does not match the Amazon picture. Oster has chosen to replace its original, heavy-duty blender jar base with a cheaply-made, inferior knock off. This poor quality blender jar base seems to come with all new Oster blenders. This is an important point to consider when shopping for a new blender.Update, April 29, 2011:Today, I called Oster and the representative said that the Oster replacement blender jar base shown in the picture is no longer available. This representative also told me that mine is the first complaint she has received about the poor quality of this part. However, she also said that if enough people call and document their complaints about the blender jar base, Oster will produce an improved part.