Drennan Bobbers are a popular float design that can be used for everything from fishing worms for perch on lakes to trotting for grayling on shallow rivers.

They are a traditional design that was originally made in cork and cane materials. The modern version has a light, buoyant, blow-moulded body and a tough plastic stem for stability. These floats are best-attached top and bottom with silicone float rubbers.