Metal round burner kovers. Patented Snap Pack packaging. All burner kovers packed 4 per set (2 small and 2 large). No. 501: Shape: Round, Material: Metal, Color: White, Pkg Qty: 4 No. 505: Shape: Round, Material: Metal, Color: Black, Pkg Qty: 4 Thanks for shopping Hipp Hardware Plus's Online Store for all your DIY and Home Improvement needs. Remember Hipps Help!