Specifications: 1) 28cm wok with bakelite handle 2) Size: 28cm 3) Cubage: 5qt 4) Gauge: 2.6mm 5) Material: aluminum 6) Exterior: silicone polyester 7) Interior: double-layer Whitford non-stick coating 8) Bottom: groove Features: 1) Type of inside coating: Teflon, CCC coating, Whitford coating, Xynflon coating 2) Type of outside: mirror polished, silicone polyester, enamel, soft anodized,hard anodized 3) Type of bottom: grooved, brush and back stamp, indirect heating base forinduction cooker 4) Type of handle: bakelite, silicone rubber, SS cast, SS tube, SS oblate, wood 5) Thickness of aluminum: 2.5mm, 2.6mm, 3.0mm, 3.2mm, 4.3mm