Based on the product photos, the 6.5 inch and 8 inch versions have different designs, depending on the material used, the two legs and the way , how the legs are attached. The 8" version is metal and locks very well with the handle. Despite the fact that I only have one leg, this is a study, although the figure is heavy. I have two Bought 8" versions and am very happy with them! Avoid the 6.5-inch version if you can.
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