Hello and welcome to our store. We hope our service can satisfy you and wish you have a pleasant shopping experience! Features: Wide angle view reduces blind spots and increases safety when you are passing or changing lanes. Improves confidence while backing up and parking. Increase Visibility and Improve Vehicle Safety. Unique and affordable blind spot solution. Universal Fit, suitable for interior or exterior use. Suitable for installation on rearview mirrors and side mirrors Fits most cars and trucks. Comes with stickers, Easy Installation, Directly Stick On. Manufacture Country: China Material: ABS + glass Size: approximately 5.5CM How to use: Clean the rearview mirror Tear off the blind spot's adhesive tape Stick it to the proper place Get the best view position Hold for some time Package Included: 2PCS