Kit includes enough tie-dye supplies for a party of 6 people Features 18 easy-squeeze bottles of highly-concentrated nontoxic One-Step dyes in popular colors – just add water to activate No need to presoak fabrics in soda ash before dying; just add water to activate Includes step-by-step technique guide featuring over 8 tie-dye looks to choose from Dyes are safe to machine wash – colors stay bright and bold through repeated washings Colors stay bright and bold through repeated washings Use with 100 percent natural fiber fabrics like cotton, rayon and wool for best results