Instroke Saddle3x5 DO1 Black Air Brushed Case. The Instroke D01 case is a black leather case with grey air-brushed accents on tooling. The case has hand tooled design going down the front and back of the case. Considered by most to be the best cue case in the industry today, Instroke cue cases are unmatched for quality material and workmanship to provide you with the very best protection for your pool cue investment. Each Instroke case has a side pocket for a jump cue handle. Cue butts and shafts can be put in either way easily. Each of the Saddle Series cases are hand stained. Colors may vary from what is pictured.