The Northern Brewer Cold Crank Wort Chiller Copper Immersion Coil Kit is a gold-colored immersion coil designed for cooling wort during homebrewing. This kit includes a 35cm high copper tube with a 0.45cm inner diameter and a 0.8cm outer diameter, along with a 1.5m silicone hose with a 0.8cm inner diameter and a 1.2cm outer diameter. It has an assembly required for installation, and is designed to cool wort to approximately 30°C/86°F. This product is sized at 20*10 cm/7.87*3.94 inches and is made of copper and silicone materials.