Expanding the Yamamoto Uni urchin lineup with a full size for improved castability, the Yamamoto Uni Mas features a 19mm core and a host of bulb appendages that catch water and shimmy erratically with each twitch of the rod tip. Poured with Yamamoto's custom TPE hard plastic material, the high-density formula provides the perfect buoyancy, creates a bigger profile that displaces more water, and ensures exceptional durability over numerous fish catches. Ideal for a variety of rigging techniques, the Uni Mas excels with wacky or neko rig presentations, and the larger core size allows anglers to use bigger hooks, casting gear, and a more aggressive fishing approach. Packaged in a clam shell container to prevent damage during storage, the Yamamoto Uni Mas provides anglers with increased drawing power when trying to coax big bites in high-pressure fisheries. 19mm core Bulb-shaped appendages that catch water and shimmy erratically with each twitch of the rod tip High-density hard TPE plastic material for better buoyancy and durability