This is the ST Racing Aluminum Shock Collar with O-Ring Black YetiFeatures:Made of durable materialsBlack in colorSet of four

• ST Racing Shock Collar W/O-Riongs (4pcs) / Yeti, Wraith, EXO

ST Racing Shock Collar W/O-Riongs (4pcs) / Yeti, Wraith, EXOST Racing