Colors: Red, Black, White, Orange, Green, Colorful, Rose, Blue, Flesh Color. This product is glow in the dark,in order to make it effective,you would better put it in direct sunlight. Gauge: 2g(6mm),0g(8mm),00g(10mm),1/2"(12mm),9/16"(14mm),5/8"(16mm),11/16"(18mm),3/4"(20mm).