Ez-Glide Wheeley Kit - Universal Dobsonian Telescope Mobility UpgradeEz Glide Wheeley Kit Universal mobility upgrade for Dobsonian telescopes. This user installable kit permanently adds smooth rolling casters to the base of your Dobsonian telescope, making it much easier to move between storage and observing locations. The result is a telescope youll actually use more often. The kit raises the eyepiece by nearly 7 inches on most scopes, reducing the need to bend over: especially helpful for smaller Dobsonians. Key