The Cosmo Fit Shaft made from Super Duralumin, a lightweight aluminium alloy, making them very hard wearing. These size 1 spinning duralumin stems have a rounded top to allow the flight to rotate 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 super duralumin stems is what is visible when the dart is fully assembled. Shaft length: 13mmThe Cosmo Fit Shaft made from Super Duralumin, a lightweight aluminium alloy, making them very hard wearing. These size 2 spinning duralumin stems have a rounded top to allow the flight to rotate 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 super duralumin stems is what is visible when the dart is fully assembled. Shaft length: 18mmThe Cosmo Fit Shaft made from Super Duralumin, a lightweight aluminium alloy, making them very hard wearing. These size 3 spinning duralumin stems have a rounded top to allow the flight to rotate 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 super duralumin stems is what is visible when the dart is fully assembled. Shaft length: 24mmThe Cosmo Fit Shaft made from Super Duralumin, a lightweight aluminium alloy, making them very hard wearing. These size 4 spinning duralumin stems have a rounded top to allow the flight to rotate 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 super duralumin stems is what is visible when the dart is fully assembled. Shaft length: 28mmThe Cosmo Fit Shaft made from Super Duralumin, a lightweight aluminium alloy, making them very hard wearing. These size 5 spinning duralumin stems have a rounded top to allow the flight to rotate 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 super duralumin stems is what is visible when the dart is fully assembled. Shaft length: 31mmThe Cosmo Fit Shaft made from Super Duralumin, a lightweight aluminium alloy, making them very hard wearing. These size 6 spinning duralumin stems have a rounded top to allow the flight to rotate 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 super duralumin stems is what is visible when the dart is fully assembled. Shaft length: 35mmThe Cosmo Fit Shaft made from Super Duralumin, a lightweight aluminium alloy, making them very hard wearing. These size 7 spinning duralumin stems have a rounded top to allow the flight to rotate 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 super duralumin stems is what is visible when the dart is fully assembled. Shaft length: 38mmThe Cosmo Fit Shaft made from Super Duralumin, a lightweight aluminium alloy, making them very hard wearing. These size 8 spinning duralumin stems have a rounded top to allow the flight to rotate 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 super duralumin stems is what is visible when the dart is fully assembled. Shaft length: 42mm