B3 RIVAL RELEASE SWIVEL STEM BLUE The Rival flex features black aluminum jaws and a brand new curved trigger design. With a color coordinating head and connector bracket on the patented flex connector system, this Rival is a great looking, high quality release that will perform well without breaking the bank. Our patented flex connector is the easiest system on the market today, with just one screw that moves in and out you can fit the release to any hand size.