<Tr> <Td> 7000500000000000000 ♠ 5 mm </Td> <Td> 7000800000000000000 ♠ 8 </Td> <Td> H - 8 </Td> </Tr> <Tr> <Td> 7000550000000000000 ♠ 5.5 mm </Td> <Td> 7000900000000000000 ♠ 9 </Td> <Td> I - 9 </Td> </Tr> <Tr> <Td> 7000600000000000000 ♠ 6 mm </Td> <Td> 7001100000000000000 ♠ 10 </Td> <Td> J - 10 </Td> </Tr> <Tr> <Td> 7000650000000000000 ♠ 6.5 mm </Td> <Td> 7001105000000000000 ♠ 10.5 </Td> <Td> K - 10.5 </Td> </Tr>

What letter is a size 12 crochet hook