The Carbide Hiking Stick System consists of a machined brass ferrule and a replaceable carbide tip. These tips have been extensively tested by our staff while hiking in Southern Utah on varied terrain such as sand, gravel, streambeds and sandstone. The tips held up exceptionally well with very little wear even when used for many miles on solid sandstone. The replaceable carbide tip threads into the ferrule and can be replaced as necessary. This is an exceptionally attractive and functional system. 1 1/2" long (with out carbide tip. 1 3/4" with.) 3/4" ID (with 1/4" taper.)