All new handmade HO scale coal load inserts for Walthers 55 ton twin bay hoppers with prototypical hump profiles . All inserts are hand made one at a time from lightweight recyclable materials , a mine run coal mix made from crushed and screened real coal . These loads are 1-1/8 W x 4-13/16 L inches approximate . Sale is for a set of 6 load inserts . Thumbnail image is of my hopper with one of the advertised load inserts installed . Thank you for visiting .