Specification:Material: PlasticHeight: Approx. 6.3cmDiameter: 3.5/4.0cmQuantity: 6pcs/pktIncluded: 6pcs hair rollers (Random Color) Features:1. Natural fluffy hair rollers, for women girls hair daily care.2. Fit for all the length of hair.3. Two sizes for choice, each size creates different curls.4. Self-adhesive no perm curling rollers, no-hurt to your hairs.5. These rollers can increase the bulkiness of the hair root, improve the top contour of the hairstyle.6. Made of plastic material, non-toxic and durable to use, easy to clean for reuse.Direction: 1. Blow-dry your hair about 80% to 90% after washing (or spray little water on dry hair). 2. Put the curlers in, then use duckbill clips (if necessary). 3. Use hairdryer to blow-dry hair completely. 4. Take the curlers out after several minutes (it's up to you). 5. To get the volume and nice shape you want, just use a little bit of hairspray or other styling products.