I thought I had a decent assortment of ball & socket suspensions. This morning I came across this company's website advertising these six styles. Never mind they come in different sizes and colours but of the six shown I have only the two shown in brown. I sure would like to get that blue one - also in white and in brown - for my collection. The website describes it as ' Anti-pollution suspension porcelain insulator (Double-shed) ' The disc on the right is a tricky one. It's like those eye puzzles; if you watch it, it turns from facing left to facing right. Blink and it is back the other way.