LeLuv Silicone Sleeves for Easyop 2.25 Inch Vacuum Pumps - 3 Small Replacement Seals for Penis Pump Accessories - Perfect for Vacuum Therapy & Male Enhancement at Home

These are nice sleeves. A bit thinner than expected but they work very well. Only time will tell how long they last but now that I know what size I need I can get a three-pack of just that size from LeLuv for $9.99 - so $3.33 each which is reasonable even if they have to be replaced somewhat frequently.My pump cylinder is 2 1/2" OD and these are a very tight fit so I suspect that's the maximum OD but maybe they'd stretch to 2 3/4"? There are some small "seams" left from the molding process but if they're contacting your penis you have the sleeve attached to the cylinder inside out.Since these are silicone only water based lube should be used. Apparently the color is not always indicative of the size based on what's shown here and at this other page:http://www.amazon.com/gp/product/B00QJE3H7Y/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A3VZEZDUSWXB7MBecause my small (1" ID) is flesh-tone, medium (1 1/4" ID) is red, and large (1 1/2" ID) is blue. With the 90 day 100% satisfaction guarantee I'm not too worried about receiving the wrong size in future orders.