Arbe Rubber Mold Vulcanizers are made from heavy duty aluminum cast construction; Ultra sensitive bulb and capilary thermostat ensure precise and consistent temperature control; Steel framed ceramic-mica heating elements; Thick aluminum heating plates. Arbe Dual Control DELUXE Vulcanizer features: Plate Size: 8 1/4"W x 6"D / Max Opening: 4" / Max Temp: 550°F / Dimensions: 14"W x 9"D x 20"H / Arbe Deluxe Vulcanizer features: Plate Size: 8 1/4"W x 6"D / Max Opening: 4" / Max Temp: 550°F / Dimensions: 14"W x 9"D x 20"H. / Arbe Standard Vulcanizer features: Plate Size: 8"W x 5"D/ Max Opening: 2 3/4" / Max Temp: 550°F / Dimensions: 15"W x 8"D x 18"H. All are 110V (220V is also available)