You are ordering premium cast iron weights that are 1.5 inches thick. These weights are designed to fit a specific pocket shape and have a logo on them. Please check to make sure that the weights you have have a logo on them. If not, you will need to order the 1 inch thick weights without a logo, which are for use with our earlier designed weight vests. Please let us know in the comments section during checkout if you need the 1 inch thick weights.