12 pieces 10 inch or 13 inch long double ended bamboo Tunisian Afghan crochet hooks 3.25 mm - 10.0 mm US size 3 - 15 (D to N).  Brand new. Only the finest top quality material (the toughest part of six-year old winter bamboo grown in high mountains) is selected to make our crochet hooks. These crochet hooks are carbonized, which makes them stronger and mildewproof and gives them a lifelong quality assurance. Carbonized crochet hooks are much more expensive than bleached or waxed ones. Sizes are: Metric and US sizes: 3.25 mm (US D/3); 3.5 mm (US E/4); 3.75 mm (US F/5); 4.00 mm (US G/6); 4.50 mm (US 7); 5.00 mm (US H/8); 5.50 mm (US I/9); 6.00 mm (US J/10); 6.50 mm (US K/10.5); 8.00 mm (US L/11); 9.00 mm (US M/13); 10.0 mm (US N/15)

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