Features: Holds the probes and wires well. No longer have to worry about crimping probe wires under the lid. The small round hole is fit for smaller probes and the larger slot port is great for large or dual probes. Size: Overall diameter 1.65 inch/4.1cm, Hole diameter 1.25 inch/3.1cm, Thickness 0.35 inch/0.89cm. BBQ probe port accessories are made from high-quality, high-temp-resistant, food-grade material. which makes for a nice seal, fits snugly. Just need to drill a 1-1/4"(3.1cm) hole in the side of the grill. Our thermometer probe port makes it easy to feed probes into your grill without crushing or damaging the sensor cord under the lid. Specifications: Material: Rubber Size: Approx. 1.22x1.61inch(3.1x4.1cm) Package Includes: 2x Thermometer and Probe Grommets note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.