This is a Captains of Crush No. 2.5 modified with an adjustable choker gripper. The choker allows for easy adjustment of the handle width. Even with the same RGC (Resistance Grade Classification), the perceived difficulty changes by setting the width to a position that is easier to grip. While a wrench can be used to adjust the width, it will shave the long nut and washer, so it is recommended to grip and turn the long nut by hand. Although not officially rated, it feels like an average 2.5. It's been used only for the modification and 15 test closes, so it's technically a used item. Please judge the condition from the photos. The choker device is made entirely of stainless steel. It can be removed if you no longer need it. In my personal opinion, it's much easier to use than other choker methods and safer than clamps. The only drawback is that if you grip the nut with your entire pinky finger, the handle will become longer and the RGC will decrease, so please be careful (see the last photo). Everything in the photos is included. Thank you. #gripper #ghp #coc #setblock #chokergripper #handgrip #gripper #gripstrength