Attach-A-Lens - Peel 'n Stick Lenses, +3.5 Available in +1.00, +1.50, +2.00, +2.50 and +3.00 reading powers Uses a light adhesive to attach lens to mask or goggles Comes with extra adhesive stickers for reattaching lenses and a placement tool for easy installation Fits into any type of mask or goggles! Easy to install! Directions and pre-clean wipe included.