I have 3 boxes of Natural Latex Tubing 1/4" ID x 1/16" wall x 50 feet. They are currently listed on Ebay at $30 each with free shipping but I would also trade one or all 5 boxes for silver, some 22lr, 9mm, 223 or 7.62X39. The guy I got it from gets it for his catheter and has kept it stored in a cool dark location. I kept a box for myself for making a water balloon sling shot and a trebuchet for the Grandkids. PM me if you want more info.