ROKR Starry Night is a mechanical music box kit made from laser cut wood and inspired by the solar system model which illustrates the relative positions and motions of the planets and moons. The item has been designed to target wide range of audience - ranging from hobbyists and puzzle builders to teens and adults who just loves making things! It can also become a great bonding project with smaller kids as a helper. There are no scissors or any other tool required for assembly as all the parts fit together and lock themselves in without any glue. ROKR Starry Night is a perfect gift to bring and steal the attention on birthdays and as stocking stuffers to delight everyone with a kid inside their heart! Assembled size (estimate) : 5.3" x 5.3" x 6.1"