Pintech Percussion T-CLAMP Electronic Drum Accessory T-clamp used to attach 1 1/2 round rack tubing to 1 1/2 round rack tubing at a 90 degree assembly This is the standard clamp found on our Gig and Jam series drum kits Black composite plastic These are generally needed to add extra arms onto your rack, or to add our SL tube to a rack. Made in the USA!