At first sight I thought this sleeve looked to big for my 2-1/4" pump, but its actually a perfect fit. Very comfortable and does not loose vacuum. The inside diameter of this sleeve is 1-3/16" for a length of 1-3/8". I've been using this for three weeks now with-out any issues. Sleeve is extremely soft and pliable, made from 100% TPE. Sleeve comes wrapped in cellophane to keep it from drying out.
Penis Pump Replacement Sleeve | Optimum Series Universal Fit
Thanks to the awesome customer service here at The Enhanced Male, this is the perfect replacement sleeve for the tiny (for me) sleeve that came with the LYNK AUTOMATIC PRECISION PROFESSIONAL PUMP WITH LCD GAUGE. This works perfectly.
Great accessory
For me, the original base sleeve for the LYNK electronic pump was too tight, especially when I was done using it, and uncomfortable when pressures increased. I bought several other base sleeves and this was the first one I tried. It felt terrific. There's no problem with withdrawal and the base is extra wide and soft to support the suction pressure over a larger area. I have 4 other base sleeves to try but this is definitely a keeper.