Everything about this product has been designed with fish care in mind: the lack of need to transfer fish from retainer to weigh sling thanks to the central weighing handle, the baffled zippers with locking rings to easily secure to a tether cord (not included), and the dark, fish-friendly mesh that reduces light penetration and maximises water exchange to your prize catch. You can rest assured carp will stay safe, comfortable and calm in this retainer while you get the camera and scales ready.