Perfect fit for the left handle (22mm diameter). The throttle handle felt a bit too large for me 23mm diameter). I took out the inside plastic and put it on my original throttle handle. There is 4 level of power. Temperature is around 3 degrees and I only use the first level. The switch on the left handle is very discreet and easy to use. I like it !
Nice quality and materials.
The handles heat up quickly. Reliable seller, i recomended.