This listing is for one packet of Rit Powder Dye in one of the 18 colours available: 

All purpose but perfect for(not suitable for Polyester):

Here's info from Rit official website: 

This versatile, easy-to-use and non-toxic dye is ready to deliver vibrant color to almost any type of fabric or fabric blend. Perfect for rejuvenating faded clothing, changing the color of apparel, shoes or accessories, coordinating home décor, hiding laundry accidents and so much more. Are you the crafty type? Follow one of our easy-to-use tutorials on how to create a tie-dye, ombré, dip dyed, marbled or shibori pattern. Or see for yourself how beautifully Rit dyes wood, wicker, paper and cork. Whatever your purpose, all you need is a washing machine, plastic container or stainless steel sink to get started.

Find dying techniques here: https://www.ritdye.com/techniques/