An injection molded cap or closure having a weld line, wherein the injection molded cap or closure is formed from an ethylene-based resin comprising: a high molecular weight component, wherein the high molecular weight component comprises an ethylene/alpha-olefin copolymer having a density of from 0.915 g/cc to 0.940 g/cc and a high load melt index (121.6) of from 3.0 g/10 min to 12.0 g/10 min wherein the high molecular weight component has a molecular weight distribution (M w /M n) of from 3.5 to 5.5; and a low molecular weight component; wherein the ethylene-based resin comprises 50 wt.% to 60 wt.% of the high molecular weight component; and wherein the ethylene-based resin has: a density of from 0.945 g/cc to 0.958 g/cc; a melt index (12.16) of from 1.0 g/10 min to 3.0 g/10 min; an molecular weight distribution (Mw/Mn) of from 5.0 to 8.0, where Mw is the weight average molecular weight and Mn is the number average molecular weight; and a cross-over relaxation time of less than 80 ms, wherein density is determined according to ASTM D-792, Method B, wherein the high load melt index (I 21.6) and melt index (I 2.16) are determined according to ASTM D1238 at 190°C, 21.6 kg, and at 190°C, 2.16 kg respectively, wherein the weight average molecular weight (Mw) and the number average molecular weight (Mn) are determined by gel permeation chromatography as set out in the description, wherein the cross-over relaxation time is determined as set out in the description. a high molecular weight component, wherein the high molecular weight component comprises an ethylene/alpha-olefin copolymer having a density of from 0.915 g/cc to 0.940 g/cc and a high load melt index (121.6) of from 3.0 g/10 min to 12.0 g/10 min wherein the high molecular weight component has a molecular weight distribution (M w /M n) of from 3.5 to 5.5; and a low molecular weight component; wherein the ethylene-based resin comprises 50 wt.% to 60 wt.% of the high molecular weight component; and wherein the ethylene-based resin has: a density of from 0.945 g/cc to 0.958 g/cc; a melt index (12.16) of from 1.0 g/10 min to 3.0 g/10 min; an molecular weight distribution (Mw/Mn) of from 5.0 to 8.0, where Mw is the weight average molecular weight and Mn is the number average molecular weight; and a cross-over relaxation time of less than 80 ms, wherein density is determined according to ASTM D-792, Method B, wherein the high load melt index (I 21.6) and melt index (I 2.16) are determined according to ASTM D1238 at 190°C, 21.6 kg, and at 190°C, 2.16 kg respectively, wherein the weight average molecular weight (Mw) and the number average molecular weight (Mn) are determined by gel permeation chromatography as set out in the description, wherein the cross-over relaxation time is determined as set out in the description. a density of from 0.945 g/cc to 0.958 g/cc; a melt index (12.16) of from 1.0 g/10 min to 3.0 g/10 min; an molecular weight distribution (Mw/Mn) of from 5.0 to 8.0, where Mw is the weight average molecular weight and Mn is the number average molecular weight; and a cross-over relaxation time of less than 80 ms, wherein density is determined according to ASTM D-792, Method B, wherein the high load melt index (I 21.6) and melt index (I 2.16) are determined according to ASTM D1238 at 190°C, 21.6 kg, and at 190°C, 2.16 kg respectively, wherein the weight average molecular weight (Mw) and the number average molecular weight (Mn) are determined by gel permeation chromatography as set out in the description, wherein the cross-over relaxation time is determined as set out in the description.