Eye Care 4 U Vision have a few types of flip-up clip-on sunglasses, but this one is small and comes in four different colours. These clip-ons comes in lens width 55mm, depth 45mm, overall length 138mm. The clip will not fall apart like cheaper clip ons, and has a handy flip up function for easy wear. Great lenses with UVA/UVB and polarised filters that give protection against harmful ultraviolet rays. Manufactured in the UK to British standards.