Mason Jar Lid with Star String Lights - Battery Operated - Cute - Lid ONLY - Great Gift Idea - Southern Primitives by Kathy Decor Cute mason jar lights! This is a Mason Jar Lid (2.75" Diameter) that you screw onto a Mason Jar. The lights are attached to the lid. This is for the Lid and Lights ONLY! Just attach it to your own mason jar!! 17.5" Long String, 5 Lights Included. Star shape. 4 Hour Timer, or Constant On feature. Runs on 2 AAA Batteries. The lid is a silver color - as shown in the 3rd photo.