Chenille Kraft 911001 Jumbo Stems, 12" x 6mm, Metal Wire, Polyester, Assorted, Box of 1000 Chenille Jumbo Stems. Jumbo 12" x 6mm crush-resistant polyester stems in assorted colors. Recommended for ages 8 and up. Jumbo 12" x 6mm crush-resistant polyester stems in assorted colors. Recommended for ages 8 and up. Box contains 1000 assorted jumbo stems Jumbo stems are 12" in length Jumbo stems are 6mm in diameter Colors may vary in Assortment