This is a great basic pulley. It doesn't have the efficiency of the ball bearing, but let's face it, most of us would never notice the difference in our pulley systems. This is a great value pulley for the price of a decent karabiner! If you want a ball bearing pulley click here
Large single pulley with swivelling side plate.
Stainless steel axle and washer.
Sideplates material: aluminium
The sheave is mounted onto a bronze collar to promote a good level of efficiency.