Lutron Skylark Contour LED+ Dimmer Switch for LED and Incandescent Bulbs, 150-Watt/Single-Pole or 3-Way, White (CTCL-153PDH-WH) CTCL-153PDH-WH - The Home Depot
Lutron, Skylark Replacement Knobs, 280294125
Lutron Skylark Incandescent/Halogen/LED/CFL Ivory Slide Dimmer Switch - McCabe Do it Center
Lutron Skylark Dimmer Replacement Knob, SK-DK, White and Almond - Wall Dimmer Switches - Amazon.com
2) LUTRON Skylark Dimmer Replacement Slide Knob SK-DK White & Almond Each Pack | eBay
Lutron SK-IV Ivory Skylark Replacement Knob for Skylark Dimmers and Fan Controls - LightingDirect.com
Lutron SK-WH White Skylark Replacement Knob for Skylark Dimmers and Fan Controls - LightingDirect.com