ECE Certification --- The triangle reflectors have passed European ECE certification, made of high quality plastic material and solid UV PC lens, red triangle reflector ideal for dark nights to help you stay safe and be seen. Product Size --- Height: 13.2cm, Width: 15cm, Depth: 0.8cm, The distance between the two screws is 7.5cm. Widely Used --- This includes 4pcs triangle reflectors, each rear triangle reflector with two mounting holes, strongly reflect light, ensure safe driving at night, apply to caravans, trailers, RV, tractors, RVs, etc. Easy to assemble - -- Each safety reflector with two mounting holes is convenient to install. Bolts and nuts are included, each is a set of steel bolts and nuts. Customer Service --- Product for sale by , we are committed to a good shopping experience, but if for some reason any you are not completely satisfied with the product, let us know, we will give you the solution as soon as possible, please do not hesitate to contact us if you have any questions!