Save time and effort with these Microwave Rollers. When you haven't got a lot of time to get ready, these rollers heat up in an instant in the microwave and can set in your hair as little as two minutes. It's so much easier than using traditional rollers or curling tongs. Create beautifully smooth, long lasting and bouncy curls super quickly. They work equally well on wet or dry hair. Comes in a storage box containing 12 rollers. Measures 15cm by 13.3cm by 6.4cm (6" by 5-1/4" by 2-1/2"). Each roller is 6cm long x 3cm diameter.