Thinking of a day on the water? Ensure you're well equipped to get your boat from A to B with these Double Wobble Brackets from Viking. These double wobble brackets are ideal for your boat trailer and are to be used with wobble rollers, which make launching your boat off the trailer that much easier. These brackets by Viking come in an 18mm size to suit wobble rollers with a 20mm hole. The double wobble boat trailer brackets have also been galvanised for strength and durability enabling you to use them trip after trip.