Some mouse skates that we really love! Maybe you will too! These are 6.5mm dots and 1mm thick. Accel Skate (Recommended): PTFE Material Smoothest Texture for fast, and consistent glide Our Thoughts: These are by far our favorite skates. They are extremely speedy and works great on both glass and cloth. They retain the same smooth glide on either surface. Decel Skate: PTFE Material Polished texture for controlled movement, slower than Accel Our Thoughts: For our keyboard friends! these may feel more familiar and consistent than the Accel skates--as keyboard desk mats often do not specify stitch or movement specifications. Stealth Skate: PTFE Material + Poron foam backing Poron foam backed skate for cushioned glide. Our Thoughts: Poron-backed skates provide a unique feel, but may not be for everyone. Speed should be close to Decel, but with added cushioning.