40cm multi-function magnetic whistle hook traffic light control stick flashing warning led traffic baton

size: 54cm/40cm.material:pc.quantity:1 item per lot.light:red blue.feature: 1.waterproof and splashproof,it can be used in the rainy days. technology: hard plastic, reflective crystal lattice, highlighting led warning light lamp application:roadsafety highways, on duty personnel, police road channel.cloudy, rainy day, at night, the car broke down, the warning to be careful driving slow vehicle suitable for road traffic contral,police road dredging,car emergency, earthquake help, construction site and so on note:if you need the item to work,please install 3 pcs aa batteries in it.(not include).syi