9 IN 1 CONVENIENT DESIGN---The crochet hook set includes 9 interchangeable heads, whose size is separate 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm, change easily, convenient to use2 LIGHT LEVEL---There are 2 light level, dim or bright, for these crochet hooks, you can adjust according to your needs. It can be used as a small flashlight when crochet hook is not installed15 MINUTES QUICK CHARGING---15 minute quick charging and long lasting battery 7-9 hours. USB charging can be done by wall adapter , power bank or desktop/laptop computer etcSIZE MARKED---Each Interchangeable head has its size marked, so that you can distinguish them easily, convenient to fetchPORTABLE CASE---The crochet hook set comes with a stylish Black zip case, with which you can storage these crochet hooks well after using, and convenient to carry when outSpecification:Handle material: ABS+SiliconeCrochet Hook material:PCOverall crochet length: 15.5cm/6.1inCase size: 18103.5cm/7.13.91.4inCrochet Hook Sizes: 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mmWeight: Approx.133g/4.7ozPackage list:9 Interchangeable heads1 USB charging cable1 Small wrench1 handle1 Case Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.