Lightning Bowstrings square up sight aid - $39.88

This simple visual reference lets you instantly see incorrect grip and any bow torque while squaring your riser. It's perfect for situations that can negatively affect bow torque, like shooting when twisted, turned or bent over. Also good for shooting on uneven terrain and extreme uphill or downhill angles. Zero learning curve. Easy to install. Accessory holes for attaching quiver. Type: Sight Accessories. - $39.88