Ilsa's Heat Diffuser creates a flat cooking surface, reduces and distributes heat evenly, eliminates hot spots in pans, and keeps foods from scorching Made in Italy from cast iron; removable stainless steel handle for compact for storage; measures 7-inches Eliminate hot spots and absorb and diffuse heat evenly on electric and gas burners; not recommended for glass cooktops, as it could cause scratches Slow simmer sauces and other foods without them scorching or boiling over; helps balance smaller pots like butter warmers and espresso makers Durable and sturdy; longer handle keeps hands safely away from heat; wipe clean or hand wash in warm, soapy water and dry thoroughly Material Enameled Cast Iron Item Measurement 6.75" Dia x .375" H 1 lb 4 oz. Microwave Safe No Dishwasher Safe No