Red triangle reflector passed European ECE certification, made of high quality plastic material and solid UV PC lens, strongly reflect light, ensure safe driving at night. Features: Material: UV PC Lens Lens Color: Red Installation Method: Screw On Fixed Dimension: Side Length: 15cm Height: 13 ,2 cm Thickness: 0.8 cm Distance between mounting holes: approx. 7.5 cm Product packaging: 4 triangle reflectors 8 stainless steel bolts and nuts Each triangle reflector corresponds to a set of nuts and bolts Apply to caravans, trailers, RV, tractors, truck, car, agricultural vehicle, etc.