This is a set of reproduction liger upper canines that have been cast in durable urethane plastic. The longest of the two is about 5 5/8" (14cm) as measured straight; over the outer curve the measurement is about 6 3/4" (17cm). The part of the tooth that would have been exposed in the skull is close to 3" (8cm) long, and the teeth are about 1.5" (4cm) thick. These are about the largest modern day feline teeth in existence, and they dwarf even the biggest lions teeth in both length and thickness. Don't even bother to try and replace missing teeth in a lion skull with these (or even a tiger skull if you are lucky enough to have one), as they will be way too large. If you are looking for replacement teeth, please see my other listings - I have a full set of large African lion replica canines and also a set of upper ti-liger canines which are smaller than the lion teeth and would work well for smaller lions. If you don't see these listings right away please save my store in your favorite sellers list and they will be listed/re-listed very soon.