Full Rubber Cup Heel Grounder :
1- Elasticated velcro with D-Ring across foot for size adjustment.
2- Full cup design for more contact with floor. Conductive rubber with anti-slip texture. Rubber Strap:Outer surface:103-104 Ω
3- Added safety with 1Mega or 2 Mega ohm resistor.
4- Grey conductive ribbon resistance:103-104 Ω