11" tip cutting. Excellent condition.
Trichocereus JS336 is a very nice and true pach. It comes from the JS series of Trichos, a collection based out of California. A quick google search for "T. pach. JS336" will turn up a wealth of information.
In mathematics, the empty set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero.