Suction cup is great when hanging rope light on glass or plastic. To hold the rope light in place, wrap a zip tie around the rope light and through the holes in the cup. Use with 1/2" diameter rope light.
For use with LED and Incandescent rope light tubes
Accessory for 1/2" (13mm), 3/8" (10mm), (14mm), (15mm), 1/2" x 3/4", (16mm) Round rope light