The Kong Italy Big 8 boasts a figure '8' descender with wings, designed to easily create a secure locking knot for belaying the first climber with double ropes. Its wide central opening enables you to easily navigate any knots on the ropes, making it a versatile tool for use with ropes ranging from 9 to 16 mm. Choose from either an aluminum alloy or stainless steel version to fit your specific needs.