Tactical Anglers Jr. SubDARTER SMART LURES have undergone extensive testing to ensure maximum durability and functionality. Their designs feature large recessed diamond eyes that are lifelike and provide maximum light reflection. Each lure also sports a thick heavy clear coating for durability and extra shine with a durable plastic mold for consistency and durability. Tactical Anglers Jr. SubDARTER utilize a vibrating exterior system, meaning their side gills are reversed to disperse vibration. Then on the inside, these lures feature a through wire for extra strength, internal rattling chambers for added fish attracting noise, and a weight distribution system for distance casting and balance.