Plastic Flip Flop Light Set. (Each 8-ft. Set Includes 10 3" Plastic Lights). By Fun Express This Flip Flop Light String Lights Set is the perfect beach party decoration. Connect several strands together for festive party lighting. Light up your deck or backyard by stringing this garland of lights around the perimeter. Each 8-ft. set includes ten 3" plastic lights. Light sets interconnect. For indoor or outdoor use.