Dental Lace's unique feature is that it's refillable. Natural mint flavoured Candelilla wax on 100% silk floss. An refill package contains two spools of floss, 33 yards each. The package is made of compostable cellulose cellophane and the boxes are 100% post-consumer fiber that is certified FSC and PCF free. Manufactured using renewable biogas energy. Printed with soy-based inks.