Polar Mount for the Gibertini 1.2m & 1.5 m dish, you'll need this polar mount and the az/el mount, along with an 18" or 24" jack arm. Don't forget to use a subtantial pole to mount the motorised dish assembly. If in doubt, ask us for advice.. This Mount also fits the 1.2 Metre Gibertini dish (only needed if you are going to use a traditional Jack arm) this unit is robust and precise .