Simply slide the handle onto the bottom of the Polar Camel and pull up until
it has a snug fit. Fits 30oz. Polar Camel Tumblers
Once on the mug, the handle extends 1 3/4".
The inside of the handle is 1 1/8"(L) x 3 1/2"(H).
The inside of the bottom circle only is lined with light gray rubber.