Each of the spools is wood and filled with black cotton thread.  Two weights come in this lot of 18 spools- #40, #50. Labels are clear, clean and intact. J&P Coats began in 1830 and merged with Clark after 1959. So this grouping is pre 1959. Buyer will get (2) #40-200 yd, (1)#40-100 yd and (15) #50-80 yds. Total 18 spools.