The "S-Series" Clamp-On Mic Mount is for players needing a portable way to remove and re-set their mics for a revolving number of amps or cabinets. Tjhis Model is a Bottom Mount version of the AmpClamp. It simply grasps on to the bottom lip of your cab or combo amp and using gravity and leverage, firmly keeps the mic in place. Installed in seconds its a great addition to any professional environment from home studio to studio to stage. Limited time *Bonus: Each "S-Series" also comes with the Patented Mounting Plate (included with the WT-Pro model), allowing you to easily transform it to a WT-Pro style 360 degree Tour Mount if so desired. Please Browse our Pics for ideas. 5/8" -27 Goose Neck Compatible. Fits Amp Styles & Cabs, Combos and requires FLAT Lip (@ bottom of speaker grill) from 1/8" upto 1 1/2" Thick (38mm) *Msg Me if you need a Hot Rod deluxe Size for Fender Hot Rod & VibroChamp Style Combos and Cabs upto a max 2 1/8" Lip. If you require an XL - simply message us here & well hook you up. Your Purchase includes: The "AmpClamp S Series Clamp-On Mic Holder for All Mics, sm57 style,e609 style, ribbon mics or Dual Mic'g. BONUS Includes Free : Our Patented Black Composite WT-Pro Mount Plate for 360-degree Mounting, The Knurled Mic Clip Retainer Ring All AmpClamp USA Products are Proudly Made, Assembled and Tested by our mostly Guitar/ Bass Playing Staff in our Southern American Machine shops. We actually use and abuse what we build on all kinds of gear. Direct product support for Customers , FoH and Tech personnel . Limited Lifetime Guarantee on all products. For all AmpClampUSA or AmpClamps Expansion Products or Accessories visit Mothership outside of Amazon.