Features: - General-purpose accessories, tough, durable. - Easy to install, quick and save time. Specifications: Material: Aluminum alloy Size: 11cm/4.33", height 2cm/0.79" Package Included: 4x Grass Trimmer Strings 1x Trimmer Head Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.