MAXVIEW TV AERIAL MAST POLE CLAMPS FOR CARAVAN MOTORHOME BOAT VW CAMPER RV RADIO
Can be used with aluminium masts 1" to 1.25". The mast and even the aerial could be left attached as long as it is of a compact type and is lowered and secured from turning etc. Permanent fixing via 4 x 4.5mm (M4) holes per bracket.