The Oxford Heaterz Premium Cruiser heated handlebar grips are made especially for motorcycles with 1" Ø handlebars. The grips have ergonomically engineered surface structures to optimize riding performance. Soft, grippy rubber provides comfort and control. What really sets the Oxford Heaterz apart? The answer is many tried and tested features such as the silicon cables which provide flexibility in the coldest weathers and the winter grade wiring stopss cracking and short circuits; the bonded grip design has been in use for many years and is well proven; the grip compound and thermo plastic rubber construction is designed to absorb vibration making them extremely comfortable and durable, often outlasting standard grips and the silicone wires that come from the grip are angled to eliminate water ingress and resulting corrosion/ice damage and have special unique internal supports which are heat shrunk together to stops damage if the wires are snagged. In addition, five carefully chosen heat settings allow the perfect temperature to be selected in ALL weathers and most importantly, the switch will switch off if the voltage drops to 10.5V to ensure that the battery is not damaged to the point that it cannot be recharged to full capacity.