1Pcs Outdoor Handmade Vintage Pure Brass Whistle Survival Supplies Camping Outdoor Water Sport Rescue SurvivalDescription1.Features: The whole is made of high-quality brass (including copper ring), novel design, stylish and compact, and exquisite workmanship.2.Material characteristics: The fun part of brass lies in its color change due to oxidation. Different colors have different visual aesthetics. After oxidation, it can be polished with sandpaper or wiped with toothpaste to make the color of the copperware return to its original new state.3.Scope of application: outdoor survival, self-defense life-saving, EDC player collection, etc. SpecificationProduct Name: Handmade EDC Brass WhistleMaterial: BrassSize: (length) 41.5mm×(diameter) 10mm×(thickness) 1mmAccessories: copper ringWeight: about 15gPackage include1*Whistle