The storage case with portable lanyard design is very convenient to carry, and you can put it in your backpack or suitcase. Smooth zipper is easy for opening and closing. Featuring with shockproof, dustproof and water resistance, the storage box can protect your favorite device from bumps dents and scratches. Made of high quality EVA material, the storage box shockproof, dustproof and waterproof to protect your mouse from being scratched and squeezed. The length of storage bag is 15.5cm, the width of storage bag is 12cm, the height of storage bag is 7cm. It is designed for Logitech M570/MX Ergo Advanced wireless trackball mouse. Item Name: Storage Bag Material:EVA Applicable Model: for Logitech M570/MX Ergo Advanced Size Details: Size: 15.5cm x 12cm x 7cm/6.11" x 4.73" x 2.76" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X Storage Bag (Mouse Not Included)