3.5 mm / 8 Gauge. Removable sleeve included. Wide base allows for larger cooking surface and ensures pan sits flat on heat source. Offset rivets in handles for superior attachment that will not loosen over time. Comfort angled handle design enables easy pick-up without touching hot surface. Heat resistant (572°F/300°C) removable silicone sleeve included, ergonomic design reduces hand fatigue. Non-Stick Finish, 3 layer non-stick coating, formulated for optimal results on aluminum cookware.