1 Size:for 1/8 , 1/4,3/8,1/2,5/8,3/4 inch copper tube outer layer , ... 2 Wall thickness:8mm to 12mm , 3 Materials:PE foam ... . Insulated pipe(1) Size:for 1/8 , 1/4,3/8,1/2,5/8,3/4 inch ... thickness:8mm to 12mm.(3) Length:4M(4) Material:PE foam(5) Temperature range: -40 celsuis degree to 120 celsuis degree ...