Do you use e nails or tired of not being able to save your reclaim? This is the quintessential drop down to use for your rig and what I've used for many years. All made in the USA from top quality German-Schott glass with a jig to create perfect bends and seals. Sizing is 14mm male going into your piece and 18mm female to hold the e nail securly in the joint! Offering two different lengths to help fit whatever rig you have, if your rig is smaller the shortie is a great option, if more full size the traditional drop down will be perfect!