Easy installtion - Step-by-step user manual and organized hardware kit for hassle free mounting.Laptop Arm Mount for Desk Holds 4.4-19.8lbs, 2 in 1 Adjustable Gas Spring Arm Single Monitor Desk Mount with Tray for 17"-30" Screens or 10"-16" Laptops Product Name: 2 in 1 Gas Spring Single Monitor Mount with Tray Materials: Cold Rolled Steel, ABSColor: Black, WhiteFit monitor size: 17"-30" Fit laptop size: 10"-16" Table thickness: C-Clamp Base: within 10-80mmGrommet Base: within 10-60mmLoading: Max 9 kg / 19.8 lbs per ArmVESA size: 75*75mm or 100*100mmNote:1. Please check the size and color before purchasing.2. Does not include items other than those shown in the product photo.3. Please note that due to the different monitors, slight chromatic aberration may occur, please understand.4. The above data is for reference only, the size is manual measurement, each variable may be different, please refer to the actual product, thank you.