Product Name: Steel High Hardness Spherical Washer Spring Washer Type: Standard Combination Washer Packaging: Half a Pack Combination Washer Structure: B Type Material: Steel Type: Spring Washer Trademark: huilida Transport Package: Bulk or Carton Origin: China Product Description This kind of washer on the pic is made according to drawing. We can produce from the size that buyer's need. The Material of it on the PC is steel the material can be stainless steel, steel or copper. We can make according to buyer's drawings or samples or standard. At the bottom of it, it like the ball which is smaller than the top