Description: Made from high quality and food-grade silicone, safe, durable, heat-resistant and long service life. Universal electric pressure cooker sealing rings replacement. Keep your pressure cooker airtight & leak proof and improve the work effeciency. We recommend you to replace the sealing every 18-24 months. 10 types optional: 10L 12L A, 10L 12L B, 15L 16L 17L, 21L 25L 33L, 26L 33L 40L, 45L 55L 65L, 2L 2.5L, 8L, 3L 4L, 5L 6L. Specification: Material: Silicone Color: Clear Size Chart: Internal Diameter x External Diameter 10L 12L A: Approx. 26.5x28.5 cm / 10.43x11.22 inch 10L 12L B: Approx. 27.5x29.5 cm / 10.83x11.61 inch 15L 16L 17L: Approx. 32x35 cm / 12.60x13.78 inch 21L 25L 33L: Approx. 37x40 cm / 14.57x15.75 inch 26L 33L 40L: Approx. 44x47 cm / 17.32x18.50 inch 45L 55L 65L: Approx. 53x56 cm / 20.87x22.05 inch 2L 2.5L: Approx. 16x18 cm / 6.30x7.09 inch 2.8L: Approx. 18x19.8 cm / 7.09x7.80 inch 3L 4L: Approx. 20x22 cm / 7.87x8.66 inch 5L 6L: Approx. 22x24 cm / 8.66x9.45 inch Package Includes: 1 Piece Electric Pressure Cooker Silicone Sealing Note: 1.Please allow a slight difference between the size from the above and the actual item due to manual measurement. 2.Due to the difference between different monitors,there could be a little color difference acceptable, please kindly note.