Small type: diameter 13.5cm, thickness 6.5cm x 6 pieces Large type: diameter 20cm, thickness 10cm x 1 piece Total of 7 pieces for sale. These are easy to use and prevent line tangling, so I used them for hand-line fishing, winding deep-sea rigs, etc. The round frames allow water to drain, so you can rinse the line and rig with fresh water to remove salt and dry them. Used infrequently, so they are in good condition, but please understand that they are used items.