giving you plenty of flexibility in positioning your grill

and less likely to stick to the pan

【Material】 Non-magnetic Stainless Steel

so that the casters are installed more tightly and can withstand greater force

Cooking Grid Grates for Kenmore 4 Burner 141.1768, 141.176801, 141.17680, 141.17681, 640-05057345-0, 141.16681, 141.155400, 151.157951 Gas Grills Backyard Grate giving you plenty of flexibilityGrill Grate for Kenmore 141. 1768, 1768, 141. 176801, 176801, 141. 17680, 17681, 17691, 141. 17681, 17690, 640 05057345 0, 141. 16681, 16681, 141. 155400, 155400, 151. 157951, 157951 4 Burner Gas Grills. Dimensions: 16 1 2" x 10 9 10" each cooking grate, 16 1 2" X 21 8 10" total 2 grates; 41. 91cm x 27. 69cm each cooking grate, 41. 91cm X 55. 37cm total 2 grates. Material: Non magnetic Heavy Duty Cast Iron , Best Quality and Long Life ! Don't know