This is a Giant Standard 700 x 20-25 Tube with a threaded Presta valve stem and .89mm Wall Thickness. Available in multiple valve lengths. Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling.
Giant Standard Tube with a Threaded Presta Valve Stem.
89mm Wall Thickness.
Threaded Presta Valve
Avalaible valve lengths
Buying Guide - Handbook
What to look for and things to consider before you buy