Case Star Premium Soft Neoprene Sleeve Case Bag Pouch for Logitech Wireless Performance Mouse MX (910-001105) - Blue/Black Easy removal and insertion Dimension: 5.1" L x 3.7" W Its exclusive shape can hold and protects your mouse in style Durable and high-quality soft neoprene material can well protect your mouse from scratches and dust. Specially made and perfect for Logitech Wireless Performance Mouse MX(910-001105), Not for the newest mx master.