The Diamond Baits 4.5" Bladed "Frenzy" Umbrella Rig is a perfect mid-sized Umbrella rig that brings to life the chaotic swimming action of a frenzied ball of shad that has broken off from the main school. With four 4.5" arms and four whirring nickel-plated willow blades, the "Frenzy" Umbrella Rig is perfectly suited for 3-4" boot tail swimbaits. Equipped with a 220lb test swivel, high-quality camo stainless wire, nickel-plated brass blades, and 75lb stainless steel twist-on bait swivels, the Diamond Baits 4.5" Bladed "Frenzy" Umbrella Rig is loaded with premium components that are built to last.