Stockpot induction saucepan series wmf function4 diameter 20 cm capacity 53 litre material stainless steel lid material heat resistant glass handle stainless steel material properties dishwasher safe features with lid measuring scale lid features viewing window lid handle feature cool metal handles gesundheitshinweis rustproof oven safe up to 180 c shape round suitable for gas cooker induction hob ceramic glass hob halogen cooker oven electric c