The XXL Rainbow Mandala is crocheted in the last row into a metal ring of 50 cm’s. The pattern also includes adding of beads; 1 larger bead in the middle ( 20mm) 16 x 5mm, 32 x 8mm, 32 x 8mm beads along the way. I have used several shiny beads, The pattern can also be followed without the beads. If you have a loose hand of crocheting, use a 2mm hook. I have used 16 colours in the pattern. It’s a great way to use any cotton yarn leftovers though.