New Thermador 14-33-323-07, 415364  and Model RDDS30VRS Range Burner Knob. Black, just under 2 inch diameter and metal 1/4" "D" shaft.

 THERMADOR RDFS30 RDSS30 stove valve CONTROL knob 00415364, 415364 BLACK

White also available 

Replacement Knobs. Laser 3D Printed LIFETIME REPLACEMENT. Our oven knobs have 18 totally unsolicited 5 star Ratings. These are designed heavier than the original, incredibly strong, built to last.

THIS IS NOT AN OLD BRITTLE OR USED PART IT IS A NEW REPRODUCTION AFTERMARKET PART MADE IN THE USA IN A PROFESSIONAL 3D PRINTING LAB FROM NYLON MATERIAL.(see pics) and HAND CRAFTED

These parts do not look exactly like the OEM knobs by Bosch but they are VERY similar plus fit and function superior to the original old vinyl knobs. Save, buy 4

Also Replaces knobs for many for SGT stoves

There's Nothing Better than a Lifetime Replacement Guarantee, the best investment possible. Hurry and catch these knobs while still in production.  415364 and Model RDDS30VRS