Redesigned, premium Botanicare® Inside Dimension (ID) Black Trays offer superior quality and performance. ID trays accommodate larger root masses, taller pots and deeper saturation. Rounded, wider drainage channels simplify cleaning, and newly engineered corner gussets allow for greater support. These trays maintain Botanicare’s standard true inside dimensions for maximum growing space. The outside measures 41" x 41" x 7” and the inside measures 36" x 36" x 6”. Made from recycled and recyclable ABS plastic.