The Primo Cali Supersoft Grips are Michael Harkous' signature grips created to be grippy and even softer than the regular Cali grips. Utilizing Primo's proprietary compound and the thick ribbed pattern all help contribute to the extremely reliable and comfortable feel of these grips. Specifications: Length: Approximately 170mm Bar Ends: Nylon Ends (Included) (4mm Hex Key Required For Installation) Color: Black