House has the inside dimensions of 4x4x7 7/8"
and the hole size is 1 3/16",
it also has a copper roof cap.
This tool is called the Burly Grubber, it's used for effortlessly pulling large weeds that have long taproots. You can buy one here
The first visitor to my handcrafted cedar bird house; he likes the weather-resistant cedar split shingles.