Features: new and high quality Made of high quality material, durable and wear-resistant. As part of normal maintenance, it can be easily removed and replaced. Also can be used for upgrade your watch to make it look unique. Easy and convenient to install and remove. Replace old, broken or non-working wheel. Specifications: Material: Plastic Color: Black, Blue, Purple, Gray, Green (optional) Applicable Model: for G102 G304 G305 Mouse Package Includes: 1PC x Mouse Wheel note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!