This endpin tip is sized to fit 12mm endpins. It is a slip-on tip, made of dense, long-lasting rubber, and will fit tips that have threaded ends (like the one pictured above) as well as non-threaded ones. It has a metal insert in the bottom to keep the sharp point of the endpin from poking through.
This is a high-quality, brand-name endpin cover and should last well.
Please measure your endpin to ensure fitment. An easy way to measure is to use an open-ended 12mm wrench; if it fits around the endpin, so will the cap.