Alloy the wheel for horse carriage, truck etc. use. We have 17" x2.25 and 19" x 2.25 wheel, with Alloy Rim and speical hub for horse carriages and other carts use mainly. Details see below : NameMaterialTyre&Inner tubeButylRimAlloySporksSTEEL WITH CPHub +AXLE BOLT +NUTS S.S.301# + Suit for 10MM SIZE +S.S.304# NUTS