TIGER CHAIN BLOCK PROCB, (lite) 2.0t CAPACITY with WLLTIGER CHAIN BLOCK PROCB, (lite) 2. 0t CAPACITY with WLL (Working Load Limit) The PROCB14 is manufactured from the highest quality steel materials, offering a lightweight, compact and rugged construction, producing an exceptionally strong product resistant to impact damage. The exceptional short head room allows for easy installation where every centimetre must be achieved. Using only the highest quality materials precisely machined in our own factory,