The water heater control knob is made of sturdy plastic material with good processing, nice resistance to corrosion, strong and durable for not to break, deform easily, you can use it for a long time. Good craftsmanship ensure its durability and practicality. Features - Color: White -Material:Plastic - Size: 3.50X3.50X3.50cm/1.38X1.38X1.38in - Constructed by using plastic material, control knob safety and can use it with confidence. - The plastic water heater knob is wear-resistant and durable, and has a . - The water heater knob has a reasonable design, simple operation method, and saves . - The plastic water heater knob is widely used in most gas stoves water heaters to adjust or water temperature. - Fine workmanship and creative appearance ensure its popularity and practicality. Package list: 10 heater Control knobs