I bought this and put it away, so it's a new, unused item. [Product Description] From the manufacturer: * Easy size identification through color coding * Stable shape and a structure that doesn't easily come off * Versatility for two shapes * Groove shape that accommodates all shapes ○ Sizes Size / Effective Width (mm) / Weight (g) / Strength (kN) / Color No. 1 / 6.9/14.1 / 16 / 7 / Purple No. 2 / 8.6/15.3 / 26 / 9 / Green No. 3 / 9.8/16.3 / 28 / 11 / Silver No. 4 / 12.0/17.3 / 30 / 12 / Gold No. 5 / 13.4/19.3 / 34 / 12 / Blue No. 6 / 16.3/22.8 / 40 / 12 / Red No. 7 / 17.8/25.1 / 42 / 12 / Gray No. 8 / 21.3/28.5 / 43 / 12 / Turquoise No. 9 / 26.0/31.4 / 47 / 12 / Gold No. 10 / 29.8/33.7 / 52 / 12 / Silver No. 11 / 32.0/34.0 / 57 / 12 / Green