Standard Size:  780 X ... X 125 (600 X 530) (360 X 280 X 210) mm  [L * W* H] (t1*tw) (i*g*n) mm in which L = Length; W = Width; H= Height;  t1= Top Length; t2 = Top Width; i = inner length; g = inner gap and; n = neck gap  in milimeters. 
Provide extreme cushioning to upper abdominal area while using it with Prone Head Rest
Cut-outs for positioning Head Rests & Arm Boards to stabilize upper body in Prone Position