Fluorescent Pigment Powder Combo Pack for use in Epoxy, Crafts, Slime, Nails, Polymer Clay, Candle Making, & more! This Pigment Powder is packaged in an easy to use, re-usable jar. Sold by weight. The 3 gram option includes 3 grams of each color. The 5 gram option includes 5 grams of each color. Particle Size: 1-5 microns The Nerdy Birdy reserves the right to choose the shipping method when your order qualifies for free shipping. Fluorescent Pigment Powder Combo Pack Rainbow For Epoxy Crafts Nails Slime