Medium: This robust Groundbait Mixer Medium is designed with 6 stainless steel wires of 4 mm. The connection point at the bottom is moved up creating a completely flat base which prevents damage to the bucket. The 8 mm thick hexagonal shaft ensures a good hold in a power drill. The size and distance between the wires ensures that every mixture of feed and/or soil can be thoroughly mixed. The short corners at the bottom ensure that each place in the bucket can be reached, to prevent any unmixed areas. Large: This robust Groundbait Mixer Large is designed with 8 stainless steel wires of 4 mm. The connection point at the bottom is moved up creating a completely flat base which prevents damage to the bucket. The 8 mm thick hexagonal shaft ensures a good hold in a power drill. The size and distance between the wires ensures that every mixture of feed and/or soil can be thoroughly mixed. The short corners at the bottom ensure that each place in the bucket can be reached, to prevent any unmixed areas.