I ordered the TENGA SPINNER BRICK Special Soft Edition. It was recommended for use with the Handy stroker for those who prefer a softer sleeve. As I understand it this model is a closed end sleeve. However, I tend to not like suction in my sleeves and in the past have had satisfying results converting closed end sleeves to open end by stretching them over a piece of rounded plastic and making a slight cut at the top. This allows air to enter and exit as the sleeve is moved over the penis and eliminates suction. But I wonder if the spinner’s twisting action is dependent on the suction and if cutting a hole at the top would cause the tenga to no longer twist.