Drainable, cut to fit V2. 15 – 40 mm. Flexible Convexity: conforms to the body and helps improve the pouch seal by minimizing leaks. Easy-View Window: for accurate positioning and observation. Filter: may help minimize odors and ballooning. Safe Seal Clipless Closure: may help make emptying and cleaning easy. Belt Tabs: attach an ostomy support belt for added security.