Black, round hardwood with chrome studs in handle for unique look and better gripping. Ball bearing swivel chain and cap. 12 inch long handles. Nunchaku Ball Bearing System - High capacity hardened steel ball bearings will easily spin up to 2,500 revolutions per minute, allowing maximum movement in all directions. The chain does not interfere with the sticks in any movement. Top quality ball bearing swivel system is the most advanced and best moving swivel on the market today. Compare with others and see.