The Bosch PIE651T14E is a 4 zone black glass ceramic induction hob with sleek central electronic touch controls & is a frameless design with facetted edges. Each zone has a 2 stage residual heat indicator for safety with LED display, child safety lock & safety cut out. Each zone also has 17 temperature stages for maximum control & flexibility & 4 power boost zones. Induction hobs are generally regarded as the safest, cleanest & most economical hob system to run. With the latest safety features as standard, they are also quick & controllable, with a boost function that rapidly increases cooking time!