Horolovar's Kundo fixed pin bottom block. Used on Horolovar suspension unit 1. This block is specifically designed to be used on Kundo mechanical anniversary clocks that have no locking device. A fixed pin bottom block cannot be inserted into the pendulum of Kundo clocks equipped with a pendulum locking device. Can be substituted for the 'hat' shaped bottom block used in Horolovar suspension units 3A and 5A. (The long fixed pin will engage the ring on the lower suspension guard to secure the suspension unit while moving the clock.) Can also be used on other manufacturer's suspension units. Note that due to the long pin, this block will not fit into round suspension guard tubes such as on the Schatz 49. 

We can help you find the right blocks for your clock, assemble your suspension unit to the proper dimensions, install the suspension unit on your clock, and put the clock in beat. Any questions, just ask!