uxcell Bathroom Plastic Water Heater Temperature Control Knob Switch 10pcs Color: White,Silver Tone Material: Plastic; Package Content: Heater Control Knob Product Name: 10 x Heater Control Knobs; Total Size: 38 x 35mm/1.5" x 1.4"(D*H) Net Weight: 72g; Mounting Hole Size: 9 x 7 x 33mm/0.4" x 0.28" x 1.3"(L*W*Depth) Battery Included: No