Create curls or waves with our thermal rollers - Easy to use: place the rollers in boiling water for 5 minutes - Multiple uses: you can use them more than once - Filled with crushed expanded clay - Set of 8 rollers in one package - Roller size: 23 mm, for fine curls or waves Measurements: 5.08 cm wide x 6.858 cm high x 25.4 cm long