Howard Leight Maximum Lite Uncorded Earplugs, Green, 200 Box Safety use any dry erase board spray so users will use use any dry erase board spray or wet dry erase board wipes after continuous use to clean the writing surface ): 35 Color Family: Gray Silver Depth in Inches: 23 Desk Shape: Rectangular Electric or Manual: Manual Furniture Mobility: Stationary Gaming: Non Gaming Height Adjustable: Height Adjustable Height in Inches: 15 Maximum Height: Less than 30" Next Day Delivery: Yes Series or Collection: WorkFit T Sit & Stand Desk Type: Desk Converter True Color: Black Dark Gray Wall Mountable: Not Wall Mountable Warranty Information: 5 Year Width in Inches: 35 and the T shape design helps them stay securely in place The low pressure polyurethane foam offers extra comfort