X-Raypad Obsidian Ultra DIY Mouse Skates — universal dots with a 6.5mm diameter and a thinner 0.85mm (±0.05mm) thickness. The surface is hard, with a finely frosted texture that effectively increases surface friction; the hardened PTFE in particular increases the braking power of the skates, allowing better control and emergency stops. An added anti-collapse filling layer upgrades the noise and vibration reduction tech.

• Prevents collapse
• Scratch resistant
• Even contact across the surface
• Noise reduction control

Obsidian Ultra skates are suitable for cloth and glass mouse pads — not for coated or plastic mouse pads.