10lb and 5lb weights are made from cast iron. Aluminum weights weigh 3lbs and has same dimensions of 10lb weight. Plastic weights weigh 1lb same size and shape of the 10lb weight. 10lb weights are 1" thick, 7" across the top, 4-3/4" across the bottom, 5/8" wide slot. 5lb weights are only 1/2" thick. The 10#, 5# & 1# all say NQS Pulling on them and the Aluminum weight says Midwest Super Cub
110 of the 10# wts will be in in May and another 110 will be in in June to reserve wts please call. We don't have a price or shipping cost on them yet but we will let you know when they come in.