Portable Orthordontic Kit: lightweight, easy to carry, great for travel, work, school and outdoor activities. Easy to Use: Elastic Placers have a unique design that provides an elastic hook on one end and a pusher on the other end to remove elastics. Quality Material: Orthodontic elastic rubber bands made of natural rubber, safe, nontoxic; Rubber band placer made of quality plastic material, hard to break. Wide Use: Intended use is orthodontics, braces, tooth gap, and rubber bands can be used for hair braids, pony tails, top knots, horse braids, horse manes, horse tails, model airplanes, doll hair, fishing lures, dreadlocks, dreads, cornrow, wigs, and other uses. Package comes with 500 pcs 3/16inch orthordontic elastic rubber bands; Medium Force 3.5 oz; 5 pcs plastic orthodontic elastic placers, surficient quantity for your daily use.