[Upgraded] Strong rings to reinforce around the middle part of the knobs - kinda like a tight sleeve around them to ensure they can take heavy duty and won't be cracked easily. No tool required - Easily install the part YOURSELF and quickly get your range oven burner back to work within few minutes. [100% Quality assurance]Strong rings to reinforce around the middle part of the stove knob replacements to ensure they can take heavy-duty and won't be cracked easily. The gas stove knobs replacement parts for Samsung are made from high-quality plastic tested by the manufacturer to meets and/or exceed specifications of OEM products. [Replaces Part Number] DG64-00473A, DG64-00473B, AP5917439, PS9606608, EAP9606608, B01GV9ZRM4, 3447565. You can install the knobs without any tools and quickly get your range oven burner back to work. [SAVE YOUR MONEY] Replacement your broken Samsung oven knobs, inexpensive way to fix or repair a range, save you from spending more money to buy a new stove again. The oven knobs replacements are direct replacements for a proper fit and easy installation. This is a manufacturer substitution. Functional equivalent to prior parts. [Confirm Your Model] If you are not sure if part is correct, ask us in Customer questions & answers section. (NOTE: If your stove is black, you will need DG64-00473B instead and this knob won't match your color)