• The WH1X2721 dryer selector switch knob helps when your appliance won't turn on, the timer doesn't advance, or it makes a lot of noise. • Color: White • OD*Height: 44 x 31mm/1.73" x 1.22" • Inner diameter: 6.3 x 5.7mm/0.25" x 0.22" • In the package: 2 x Dryer Knobs • Made of plastic, it is durable and has consistent and effective performance. • You can quickly complete the replacement yourself, which is easy, fast, and cost-effective. • Carefully check the model number before ordering.