Specifications:Features:- It will lights when you install the battery correctly and screw the float head.- Great fishing float for anglers by making them get the instant information of fishing.Material: EVABuoyancy: 5g / 0.18ozBattery: 2 x LR41 Button Batteries/pcs FloatItem Length: 10cm / 3.94inItem Weight: 7g / 0.27ozPackage Weight : 8 G / 0.28 OuncesPackage Dimensions (L*W*H) : 100*30*30 MM / 3.94*1.18*1.18 InchesRetail Packaging: No, No PackingPackage Include:1* Fishing Float