ETUKER rear reflector, all of our reflectors are E-mark approved, for use on vehicles and in all weathers, this 10 Pack round reflectors suitable for trailers, caravans, cycle carriers, gateposts, motorbikes and any other purpose. Specifications: Lens Color: yellow Material: UV PC lens Dimension: Appro long 7.2 X thick 0.8 cm Package:10 * reflector(10 * stainless steel bolts and nuts) Each safety reflector matches with a set of nut and bolt.