The mark consists of the stylized lettering CASTER HQ in all caps where CASTER is on top of HQ; the letters CASTER are in lime green with a teal shadow from bottom left; the letter H is also in lime green with a teal shadow from bottom left and is twice the size of the letters CASTER; the letter Q is designed to look like a caster wheel in teal with a teal shadow from bottom left and an outline on the face of the letter in lime green.
The color(s) lime green and teal is/are claimed as a feature of the mark.
"CASTER"