Handmade Coastal strings: total length 17.5 ft, with 36 cool white leds ( 9 pcs each for seashell, seahorse, starfish and sand dollars). Every string is handmade and very durable. Silver Copper Wire Lights: the copper wire is waterproof and flexible to make various shapes. It is an ideal choice for your decoration plans. USB Plug-in Light Strings: the strings are USB plug-in, it is more power-saving and economic, you can use it for a very long time without having the troubles of running out of batteries. Eco-friendly and environmental. Beach Theme Strings: the beach theme strings are very hot now, it is so special and interesting, and will lighten up your decoration occasions greatly. Remote control with Timer function: the lights are controlled by remote, save you a lot of troubles. It is much more convenient to control with timer function. You have 8 different modes of light effects, isnot it cool?