We have used many probes in our 25 Year long reptile keeping career and these probes are definitely in a league of their own . These probes are made from stainless steel and has been colour coded to aid in the ease of their use. They are manufactured with Dual Grip (Diamond Cut and Smooth) Handles that allows for use in the most slippery and wet environments. The set comes with its own faux leather pouch for ease of storage and protection.