Made by hand in South San Francisco, USA. M80 Black: this is our CH leather, a nice balance of firmness and softness. Classic black with silver font works for any drum. Snareweight M80: (Medium to Heavy Dampening) FLEXIBLE BY DESIGN to match a drummer's natural dynamics. -MEDIUM TO HEAVY drum dampening- 4 different settings... or, flip it up and off the head for none at all. -Patented clip for a secure grip to ALL SIZE metal hoops and 1/4" wood hoops...except S-Hoops and not recommended for Tama Arc Hoops. -Genuine USA Leather. (about 10" across) -MAGNETIC flexibility. Nothing "sticks" to your head- keep it open and real. Will never warp, kink or unstick. The M80 is engineered to control the resonance without sacrificing the brightness of the drum. One M80 has 4 different dampening settings: mild, medium, heavy and off. Remember the M80 fits any size drum;(8",9,10,12,13,14,16,18, etc.) It also presents some weight on the head (more than tape, plastic etc) which helps shorten the length of ringing. Dampen in a snap or disengage even faster with the on/off feature. Works with triple flange hoops, die cast, angel hoops, true hoops, brass hoops, 1/4" wood. Leather thickness does vary between 1.5mm to 2mm.