DYLON Fabric Dyes for hand use are perfectly suited for smaller items like shorts, vests or socks, and for delicates youd rather not put in the machine. Dylon Fabric Dyes for machine use are perfect for larger items such as towels, jackets, trousers etc. Each pack is bursting with a whole spectrum of ideas and the promise of brilliant, permanent results youll be proud of. So, if you feel like a change, you can wake up your wardrobe, revive a faded top or brighten some cushion covers, with colour and ease. Directions for use and helpful hints are included on the packaging. Suitable for Cotton, Linen and Viscose. Lighter shades will be achieved on polyester cotton and polyester viscose mixes. Not suitable for wool, silk and synthetic fibres such as polyester, acrylic, nylon, and special finishes like waterproof fabrics.