Cosmo Fit Shaft Gear in red are made from a polycarbonate resin to strengthen the stem at both the screw thread and the base of the top. These size 5 locked red stems have a flat top to lock the flight in place and the slim stem profile is concave in the centre of the stem, before widening where it meets the flight. The given length of these size 5 red stems is what is visible when the dart is fully assembled. Shaft length: 31mmCosmo Fit Shaft Gear in red are made from a polycarbonate resin to strengthen the stem at both the screw thread and the base of the top. These size 7 locked red stems have a flat top to lock the flight in place and the slim stem profile is concave in the centre of the stem, before widening where it meets the flight. The given length of these size 7 red stems is what is visible when the dart is fully assembled. Shaft length: 38mmCosmo Fit Shaft Gear in red are made from a polycarbonate resin to strengthen the stem at both the screw thread and the base of the top. These size 2 locked red stems have a flat top to lock the flight in place and the slim stem profile is concave in the centre of the stem, before widening where it meets the flight. The given length of these size 2 red stems is what is visible when the dart is fully assembled. Shaft length: 18mmCosmo Fit Shaft Gear in red are made from a polycarbonate resin to strengthen the stem at both the screw thread and the base of the top. These size 1 locked red stems have a flat top to lock the flight in place and the slim stem profile is concave in the centre of the stem, before widening where it meets the flight. The given length of these size 1 red stems is what is visible when the dart is fully assembled. Shaft length: 13mmCosmo Fit Shaft Gear in red are made from a polycarbonate resin to strengthen the stem at both the screw thread and the base of the top. These size 6 locked red stems have a flat top to lock the flight in place and the slim stem profile is concave in the centre of the stem, before widening where it meets the flight. The given length of these size 6 red stems is what is visible when the dart is fully assembled. Shaft length: 35mmCosmo Fit Shaft Gear in red are made from a polycarbonate resin to strengthen the stem at both the screw thread and the base of the top. These size 3 locked red stems have a flat top to lock the flight in place and the slim stem profile is concave in the centre of the stem, before widening where it meets the flight. The given length of these size 3 red stems is what is visible when the dart is fully assembled. Shaft length: 24mmCosmo Fit Shaft Gear in red are made from a polycarbonate resin to strengthen the stem at both the screw thread and the base of the top. These size 8 locked red stems have a flat top to lock the flight in place and the slim stem profile is concave in the centre of the stem, before widening where it meets the flight. The given length of these size 8 red stems is what is visible when the dart is fully assembled. Shaft length: 42mmCosmo Fit Shaft Gear in red are made from a polycarbonate resin to strengthen the stem at both the screw thread and the base of the top. These size 4 locked red stems have a flat top to lock the flight in place and the slim stem profile is concave in the centre of the stem, before widening where it meets the flight. The given length of these size 4 red stems is what is visible when the dart is fully assembled. Shaft length: 28mm