The Glasser Bass Transport Wheel
 
A safe and practical bass mobility device from the well-known Glasser brand.
 
Attractive and sturdy, constructed with black-coated steel.
Fits most endpin sockets.
Clear, solid rubber tire won't tear or go flat. Rides on a pair of sealed ball bearings for a smooth, effortless movement.
This wheel DOES NOT SWIVEL giving you more control while rolling the bass.
Wheel direction can be adjusted to your preference. 
 
To Use: Simply remove your endpin rod and install the shaft of the wheel in the endpin socket. Before purchasing, please make sure that your endpin is removable and you know your endpin rod diameter.