1. The accelerator is very sensitive, it can be started gently, and it is very easy to use 2. Easy to install and disassemble, strong practicability 3. The plastic has a comfortable grip and will not hurt your hands; it has high elasticity and is more comfortable to drive 4. Easy to install, easy to operate, easy to use, fast and convenient 5. Product size: about 6.5 x 2.8 cm 6. Weight: about 43 grams