It is a wooden hand stick made by SUNDIA which is the best for whip system that Taiwan star player, Crowser and Chao Tsuhan are good at. 
The string is 2.2 mm thick and has a thick string on one stick compared to other strings, and when playing whip-based techniques, the strings are easy to wrap around diabolts, and the affinity with the technique is excellent. 
We recommend this whip stick if you are practicing whip type skills from now on. 
<Whipstrings notes>
★ This stick is the price of one. 
★ When replacing strings , please purchase whip strings .
length
The thickness
weight
About 35 cm
About 14 mm
About 28 g