This set includes 9 interchangeable heads to meet your different needs Dim or bright 2 brightness levels depending on different lighting conditions Built-in lithium battery can be charged and reused 15 minutes quick charge and long battery life 7-9 hours. USB charging can be done with a wall adapter, power bank, or laptop, etc. All crochet hooks in one case, which keeps everything in one place and is easy to carry Product Description Color: Silicone Handle Specifications: Optional pattern: silicone handle, no handle made of silicone Hook material: PC Hook sizes: 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm Handle length: approx. 12cm/12cm Hook length: Approx. 4-4.5cm/1.57-4.5cm Package size: 18 x 10 x 3cm/18 x 9.9 x 3cm Color: as shown in the picture Weight: about 135g Package contents: 9 x interchangeable heads 1 x USB charging cable 1 x small wrench 1 x handle 1 x case Note: 1. Please allow a small error due to manual measurement. Thank you for your understanding 2. Monitors are not calibrated the same way, the item color displayed in the photos may differ slightly from the actual object. Please take the real one as standard. 3. Not only items included, other things.