These woven sponges are made from 100% cotton and are low-linting, fluffy, and highly absorbent. They feature x-ray detectable barium sulfate strands for easy detection. These sponges are available as sterile and non-sterile. Does not contain natural rubber latex.- Sponge, X-Ray Detectable, 4" x 4", 16-Ply, Sterile, 10/tray, 128 trays/cs (1280/cs)