Material: Titanium Alloy(Titanium has very low elasticity. Please don't open too much. Otherwise, the product cannot be restoreed.) Color: Gray Size: 37.5 * 7.6mm Note: 1. The Size is Measured Manually. There May Be a Slight Margin of Error. 2. The Weight is for Reference Only, the Weight of Each Batch Will Be Different. 3.Titanium products have very little elasticity, so please don’t open it too much