1/8 Tubular Elastic. More comfortable for masks than the 1/4" or 3/8" flat elastic. Choose black or white; 5yd piece or 10yd piece. Limit 10 yards total per person. If more than 10 yards is entered, the quantity will be changed and amount adjusted prior to shipping. Website will show $ 8.40 shipping charge for US Priority Mail, but the order will be shipped 1st class for $ 5.00 and shipping charges adjusted prior to processing your credit card.