This case drop shroud isn't needed for every LnL user; just those loading the shorty rounds; 45gap, 9mm, 380, (I hope nobody here is mass reloading 25acp!). 5/8" inner dia. silicone tubing. Vinyl also works, but probably need to use a hair dryer or heat gun to make it pliable enough. Search 5/8" ID silicone tubing if you want to locate.