For a period of time in the 50's and early 60's many spinet pianos were made with plastic elbows. Most of these parts from that time period are now deteriorating and need replaced because the plastic has become brittle and the elbows break. These are plastic replacement elbows that are designed to last much longer than the original plastic ones and they snap on to the existing center pin. 1-7/16" overall height.
This listing is for a set of 12 elbows. We also sell these by the full set of 88 here in our store.