JM Adjustable Feet D60mm Part# Refer to below Material of Rod: Steel Material of Base: Nylon Description: Swivel feet have a ball joint between the base and rod, thus allowing the feet to swivel to an angle of up to 20°.This is particularly useful when placing the installation on very uneven floors, or when using the feet on installations that need to be moved regularly. JM Heavy Duty Adjustable Feet,D100mm Part# Refer to below Material of Rod: Steel Material of Base: Nylon Description: Swivel feet have a ball joint between the base and rod, thus allowing the feet to swivel to an angle of up to 20°.This is particularly useful when placing the installation on very uneven floors, or when using the feet on installations that need to be moved regularly. JM Adjustable Screw Feet,D60mm Part# Refer to below Material of Rod: Steel Material of Base: Nylon Description: It has an indexed connection that allows for leveling of connection tolerances,but does not swivel, and always be used in samll or medium sized machine, some al-alloy furniture, working table,medical equipment, chemical machines etc. JM Adjustable Steel Feet D60/D80/D100 Part# As Follow Material: Steel Base: 60/80/100mm Description: Swivel feet have a ball joint between the base and rod, thus allowing the feet to swivel to an angle of up to 20°.This is particularly useful when placing the installation on very uneven floors, or when using the feet on installations that need to be moved regularly.