Updated Dock Version: Double dock stand suitable for two laptops like MacBook, Samsung, Microsoft Surface and more. Adjustable Size: Adjustable width compatible with various laptops or the thickness of notebooks varying from 0.55in / 14mm to 1.65in / 42mm. Protective Mat: Non-toxic and Non-slip silicone mat covered around groove, avoid from risking of any scratches to your devices and stable position.