1. The set includes 1 stainless steel blade assembly, 1 black ABS plastic base, and 2 food-grade silicone sealing rings, specifically designed for Hamilton Beach glass/plastic jar blenders. Leak-proof and easy to install.
2. Compatible Models: 50122, 5817, 58176, 54200, 52254, 53516C, 542100, 50200, 50199, 640-4, 52400, 54250, 56206, 53521, 600-2, 54100, 50200MP, 582-4, 58148a, 53603, 56200, 53600, 52401, 909, etc.
3. Incompatible Models: Not compatible with Wavestation or Waveaction models, such as 50256, 54200R, 58200, 50235, 52171, 50220, E52210, 50104, 54221, 58149, 50120.
4. Replace old sealing rings and tighten the components to prevent leakage.
5. If you are unsure about compatibility, compare the product dimensions with your blender. Please reference the images to ensure the selected product and size are suitable.