A version come with 6 colors ball ( 11 each). Oskar Over & Under 3-loop Chain Puzzle (3D printing Mod)Over-and-Under 3-loop is designed by Oskar. It is a twisty puzzle with moving marbles. The puzzle was inspired by Chain Puzzle from Devin Montes. However, where Devin's puzzle has only a single viaduct, Over-and-Under has two of them. The puzzle is scrambled by moving the balls and clicking the two halves between their six states. The two parts are held together with pin and magnets. The balls (22 per ring) are 10mm diameter delrin balls.The puzzle design is beautiful, rigid and in 3d printing materials. The turning is smooth. It is highly collectible, and also challenged to solve.Size : 130mm longWeight: 92g Marbles : 10mm diameter, random color out of 7 colorsYoutube : https://www.youtube.com/watch?v=8h5V4CTUeTUTP ref. : https://twistypuzzles.com/app/museum/museum_showitem.php?pkey=8453PS: As it is a mod puzzle, it takes about 1-2 weeks to finish it.Please wait for a while, then we can send out your order.Enjoy !