Hawaiian Jewelry Handmade Tiger Puka Shell Choker Necklaces from Maui, Hawaii. Each tiger puka shell is unique in color so may not appear exactly as pictured. Shell width about: 6mm-8mm Length: about 18 inches Sturdy Twist-Barrel Lock Natural Hawaiian tiger puka shells - not ground or polished Handmade on the island of Maui with shells I collected on the island of Kauai.