These Castor Wheels-Set of 4 are designed for use with Smartbox SB-M1 . They allow for an easy install on the Charge & Sync Smartbox SB-M1 for use as of the device a Free Standing Charge 7 Sync trolley Up to 2 Smart boxes can be stacked on top of each other when used with castors.
Specification
* Easy to install and use* Saves desk space & provides Mobility* Flexibility to easy moves the Smartbox between rooms.
