Handy Mod Collection Core Sleeve 是一款專為 The Handy 互動式自慰器設計的更換套筒。它是 Mod Collection 系列的一部分，為尋求全新或額外套筒的使用者提供核心套筒選項。
The texture is noticeably firmer than the stock sleeve, which made the first session feel more intense but still smooth. It fits snugly onto the device and hasn’t slipped once in the two weeks I’ve been using it.
Swapped this in as my daily sleeve and the inner texture has way more grip than the stock one that came with the device. Cleanup takes a bit longer since it holds onto lube, but honestly that's the only downside.
The core sleeve fits my device perfectly and the opening is sized just right for the intended use. I’ve already ordered a second one to keep as a backup since it works so smoothly with the motion.