Great Model Trains is the manufacturer of the "Ready To Load" Steel PLate & Slab Loads in HO & N Scale. Our products are made of an industrial non-toxic lead alloy from Adair Shops in Dyersville, Iowa creators of the "Rite Weigh" weights for rail cars. You buy other loads or you can buy real loads...Stop being "A Half Load Shy Of A Full Load". Our products come to you ready to load & are correct to todays colors & sizes of steel plate & Slab Loads. All our loads will bring your rail cars close to or over the NMRA (National Model Railroad Association's) recommended wieght rating. Each load is painted & hand built right here in Iowa and will give you a unique load with every one you purchase.