Materials include (from top to bottom):
black leather, sterling silver chain and wire, square faceted Smokey Quartz gem (15x15mm), black agate ring (53mm diameter), Hilltribe silver bead(22mm), natural black-brown horn, black onyx (10mm) and a textured sterling silver bead for a sparkling finish.
Drop is: 7″/ 18cm
Collar is comfortable and fits me. I’m 5’10″/ 178cm tall with a 15″/38cm neck circumference which is the largest size it will fit. Smaller is no problem.