Related Clues:

• Drums' edges
• Wheel edges
• Canyon perimeters
• Basket's edges
• Rounded edges, usually
• Lens-filter holders
• Eyeglasses' edges
• Canyon locales
• Eyeglass holders
• Spinners on tricked-out cars
• Air balls miss them entirely
• Parts of spectacles
• Salty spots on margarita glasses
• Glass edges
• Array at the eye doctor's