Check the listing for details. 50Pcs/Pk Dental Orthodontic Elastics Braces Rubber Bands 3.5/5.0/6.5OZ. Condition: New. Listed at 2.76 USD. Dental Orthodontic Zoo Pack Elastics High-quality latex Rubber Bands 50pcs/PKProduct Name：Orthodontic Latex Elastics(ZOO PACK ELASTICS)Application: During orthodontic treatment, elastics are sometimes worn to pull the teeth and adjust the jaw position. Usually, the elastic is worn by the patient as advised by the doctor and is mainly hung between the orthopedic devices (brackets, traction hooks).feature:High-quality surgical latex.Consistent force pull.Force ratings based on elastic being extended three times listed diameter.Available in 3 sizes of assorted Color Packs (Black, Blue red,).specification:Strength: 3.5oz(100g)/5.0oz(140g)/6.5oz(185g)Size: Chipmunk 1/8" 3.18mm Rabbit 3/16" 4.76mm Fox 1/4" 6.35mm Penguin 5/16" 7.94mm Monkey 3/8" 9.35mmPackage: 100pcs/bag,50bags/box=5000pcs/box