Indoor/Outdoor Use. Avoid Sinking Into Soft GroundAdjust According to Your Walkstool Comfort ModelIncludes Mesh Carry Pouch. Weighs only 1/2 lb.Steady Walkstool is an accessory for Walkstool Comfort models. It can be used with all Walkstool Comfort models by changing its setting according to your model. Steady Walkstool is made with three kinds of users in mind:People using Walkstool outdoors with the risk of having the rubber feet sinking into the ground.Professional users working on slippery surfaces with the need of making Walkstool even more sturdy and reliable.Big people in need of a portable seat that will last for years to come.