Solid telescope mount with universal Vixen standard dovetail attachment allows for easy movement and slow motion control with two flex handles. The Porta II is a solid altazimuth mount with a 20lb payload capacity and features Slow Motion Flexible Handles to minimize vibrations and keep your view sharp when searching and tracking celestial objects. The mount head is easily removed to allow for a switch to a regular tripod tripod. In addition, this is a great mount for terrestrial viewing. With no locks or clutches, the gear drives make it a simple matter to precisely track a planet or a ship on the horizon by turning the elevation and/or azimuth control handles.