Elmer's has been a leader in the manufacturing of quality products in the USA for over 35 years. These weights are made of top quality foam backed expanded vinyl. They have genuine VELCRO????? straps and heavy duty grommets. Each weight is labeled and color coded for easy identification. Elmer's Pediatric Weights are available in 1/4 lb., 1/2 lb., or 3/4 lb. each.