1. LED light: The crochet hook set adopts LED light design, and you can see clearly when using the hook. 2. Comfortable Use: The LED crochet hook is ergonomically designed, with a smoother handle, comfortable grip, light weight and no pressure for long-term use. 3. Multi-purpose: The luminous hook set is used for variety and can be used for DIY various crafts, such as sweaters, scarves, etc. 4. Easy to use: The luminous crochet hook set is an ideal tool for DIY enthusiasts or beginners, easy to use. 5. Practical gift: The LED hook can be given as a holiday gift to family and friends who like handicraft products, and they will like this thoughtful gift. Specification: Item Type: Luminous Hook Set. Material: Metal, Plastic Product specifications: 3 pieces. Product use: for home use. Scope of application: for most scenarios Product type: approx. 2.5mm or 0.1inch, approx. 3.0mm or 0.12inch, approx. 3.5mm or 0.14inch Length: Approx. 16 cm or 6.3 inch Battery type: button battery (comes with built-in battery) Battery model: LR41 Battery capacity: 30 mAh Number of batteries: 3 Package list: 3 light hooks Note: Delivery with built-in battery.