The aim is to build connecting loops of the colourindicated on the tiles. Add an additional tile each time to make increasingly difficult challenges. This set contains 56 tiles in a zip-up bag, each with a unique design & with colour-coded numbers. A 50-page illustrated activity guide is included. There are 28 ' Discovery' puzzles that use from 3 to 30 tiles, Five ' Rainbow' puzzles, the ' Tantrix Solitaire' challenge, two ' Unsolved' puzzles & the awardwinning ' Tantrix Strategy Game' for 2 to 4 players. Almost endless fun! Tile size approx. 4cm x 4cm.