pot liner without drain hole

its a pot liner i made for wife. not optmized. my first model. used openscad to make this. ---code start----------// Units: mmheight = 120;top_diameter = 125;bottom_diameter = 90;wall_thickness = 2;$fn = 100;module pot_liner() { difference() { // Outer shell cylinder(h = height, d1 = bottom_diameter, d2 = top_diameter); // Inner hollow part translate([0, 0, wall_thickness]) // Start a bit above bottom cylinder(h = height - wall_thickness, d1 = bottom_diameter - 2 * wall_thickness, d2 = top_diameter - 2 * wall_thickness); }}pot_liner(); ---------code end---------