Redline RL-4 Sight Black. Adjustable 1st and 2nd axis Bow Sight. .019 fiber optic pins. Tool free locking adjustment knob. Windage adjustment knob. Bubble Level and Light Included. Specifications for Redline RL-4 Sight: Manufacturer: Redline Color: Black Hand: Right Features of Redline RL-4 Sight: 4 Pin Sight Adjustable 1st and 2nd axis 019 pins Tool free adjustment Windage adjustment knob Bubble Level Light Included. Package Contents: Redline RL-4 Sight Redline RL-010-4: RL-4 Sight Black