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
We will be getting 110 more weights in mid August so to reserve wts please call. The weights new price is $22.10 per 10# wts, the shipping is quoted and we call you with total cost before we ship..