Features:This set contains 9 interchangeable heads to meet your various needs.Dim or bright 2 brightness levels suit various lighting conditions.Built-in lithium battery can be recharged and reused.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 etc.All crochet kits stored in a case, which keep everything in one place and easy to carry. Specifications:Optional Pattern: Silicone handle, No silicone handleCrochet Hook material: PCCrochet Hook Sizes: 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mmHandle Length: Approx. 12cm / 4.72inchHook Length: Approx. 4-4.5cm / 1.57-1.77inchPackage Size: 18 x 10 x 3cm / 7.1 x 3.9 x 1.2inchColor: As shown in the pictureWeight: Approx. 135gPackage Included:9 x Interchangeable heads1 x USB charging cable1 x Small wrench1 x Handle1 x CaseNote:1. Please allow small error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Only things package included, no other stuff.4. The handle is made of plastic, not wood. It looks like wood because the surface is processed to imitate wood grain.