Tulip One-Step Large Tie Dye Kit-Ultimate.Tie-Dye kits are fun and easy! Just add water to the included powder colour bottles to give fabrics their colour! Only the highest quality dye is used. Colours are brightest on natural fibres like cotton but can be used on cotton/poly blends. Kits dye up to 20 T-shirts and contain 5 colours of dye reusable bottles protective gloves rubber bands and instructions.