Stainless Steel Heavy Duty 40 lb. Load Motor * Premium 304 Stainless Steel 3/8"" Square Cut Spit Rod * 4 Prong Heavy Gauge Spit Forks Designed For All Load Types * Fully Adjustable Counter Balance System And Brackets Included * *Fits Weber Spirit E/S 310 & Genesis E/S 310 and E/S 330