Where sterile techniques are required for collection of samples, these gas sterilized sporks are ideal for use with Whirl-Pak® bags. These easy-to-use sporks are made of sturdy, durable polystyrene. The procedure for contamination-free use is to open the bag, push one spork up, pull it out, and reclose the bag. Sporks are packed 20 per bag. Free sample pack of 20 is available on request. Box of 100.