These shafts fit Cyrano and Sten 11 pneumatic spearguns.All models are made with standard stainless steel with a threaded end for a spear tip.970 and 1100 models are available in Tahitian stainless steel and have a lower embedded barb. All shafts are lightweight and thin for faster travel to your target.Materials: Stainless steel for all models; 970 and 1100 come in Tahitian stainless steelDiameter: 7mm.Barbs: 970 and 1100 models are available with one lower embedded barbWarranty: Two year limited