This bare steel cable can be interchanged with just about any speed rope available on www.thewodlife.com.au including the RPM 4.0, Revo Speed Rope and Cyclone Speed rope.Please note that this cable is not suitable for the Revo Speed Rope.You may need to also replace the adjustable set screws for your Speed Rope. They can be found here.Should I buy a bare cable or coated cable?BARE: Fastest option Suitable for more experienced users To be used on smooth surfaces only Requires more frequent replacement COATED: Most durable cable Suitable for all skill levels Can be used on variety of surfaces Requires less frequent replacement due to additional coating on cable Suitable for:Best for Advanced Jumpers.Fits the following models: RPM Speed 4.0 Rope Revo Speed Rope Cyclone Speed Rope Length:4 metre length. The bare cable rope is to be used on gym flooring only - do not use on concrete or asphalt as the bare cable will fray very quickly!