Europe Style Poly Toilet Seat , --With Chrome Plated Universal Round Zinc Hinge -- With Transparent bumper, Lid *4, Ring*6 Size Lid 415*340*14mm Ring 420*360*14mm Inner 265*205mm -- Tolerance Length/Width +/-5mm, Thickness +/-1mm -- Weight 3500g +/-100g Packing Information 4pcs/Carton, G.W. 17kg; Carton: 385*340*495mm = 0.0648m3; 1728pcs/20' 3580pcs/40'