 Knitting spools are the oldest members of the loom family, with a history dating back over 400 years.It has been speculated, however, that the so-called Roman dodecahedra may have been used as glove knitting devices, dating to "c." 1st–5th century CE.Beginning in the latter half of the 20th century, various small looms (usually plastic) using the same peg-knitting technique as knitting spools have been made.