The Colossus family keeps growing and this is the fourth generation!!
The system of response is something essential in your Yo-Yo, perhaps a vital question that you must solve as soon as you begin to give problems.
If you're looking for where the key to One Drop's success is, most of it has its own 10-Ball, flat stainless steel precision Ball Bearing.
The Side Effects may be the best invention in the World of YoYo, Thanks One Drop for this great idea!