Thumb Throttle

That eBay one looks like a copy of the Terry Cable brand I run, best throttle made.

1/2 the price of a TC, as good ?
 
just be careful how long the thumb throttle levers are.
1 of the 'cascade' aftermarket thumb throttles i had
WAS SOOOOO LONG i had to cut it...
in order to press it without hitting my hand/while holding on to bars and front brake.......

in other words i do not recommend a cascade thumb throttle for blaster/also depending on handlebars that it is attached to:)