COMPATIBLE / PERFECT FIT - These Replacement Silicone Gasket Seal is compatible with 8 quart Power Pressure Cooker such as Power Pressure Cooker XL 8 Quart ( #PPC772 or #PPC780) and WAL3,Wolfgang puck 8qt | DISHWASHER SAFE - 100% food-grade, BPA-free,LFGB,SGS certificated. No more retained odors. Super easy to clean, Dishwasher Safe. Great replacement sealing rings for your Power cooker | RECOMMEND TIPS - Recommended to replace your power pressure rubber gasket every 12-18 months ,as they are part of the lid of Power Pressure Cooker, and are essential for pressure cooker to work ! Two lines on the rim made a groove to fit underneath the wire strongly. Once firmly in place, you should not be able to pop it out easily | PRODUCT SPECIFICATION - Inner diameter approximately is 9 and 7/8 inch, outer diameter approximately is 10 and 1/4 inch, Fits 8 quart Power Pressure Cooker such as Power Pressure Cooker XL 8 Quart and WAL3 | EASY TO STALL - Step 1: Start at the spout. Tuck one edge of the sealing ring to fit snugly around the wire sealing ring rack on the lid of the pressure cooker. Step 2: Go around the lid and with your thumb gently press down on the silicone ring to help it set into place