Material: forged aluminium in cast look base: induction base, approx. 4.5mm Thick Sealing: Brand new 3 layer premium non-stick coating with highest scratch resistance. Very hard, rough and therefore extremely robust and durable, 100% PFOA free! Stems: designer plastic handles with soft-touch effect and flame retardant hob types: gas, electric, glass-ceramic, halogen, induction: 4.