Strokers, also known as penis masturbators or sleeves, are designed to provide a variety of sensations that simulate the feeling of sexual stimulation during masturbation. The specific sensations you experience can depend on the design, texture, and material of the stroker you're using. Here are some common sensations that users often describe when using strokers:

1. Pressure: Strokers create a snug and enveloping feeling around the penis. This pressure can mimic the sensation of being held or grasped, which can be particularly pleasurable during stroking motions.
2. Friction: The interior texture of the stroker, often made up of ridges, bumps, or other patterns, creates friction against the sensitive areas of the penis. This friction can imitate the feeling of being caressed or stimulated.
3. Texture Variation: Strokers come in various designs, including those with intricate textures that change as you move along the length of the penis. These variations can provide different sensations as you stroke.
4. Suction and Resistance: Some strokers have adjustable features that allow you to control the tightness or suction level. This can replicate the sensation of a tighter grip or create a sucking sensation.
5. Warmth and Moisture: Depending on the material and lubrication used, some strokers can retain warmth and moisture, adding to the realism of the experience.
6. Stimulation of Glans and Shaft: The interior texture of the stroker can stimulate both the head (glans) and the shaft of the penis simultaneously, replicating the sensation of different areas being stimulated during sexual activity.
7. Customizable Sensation: By adjusting your grip, speed, and the intensity of your strokes, you can customize the sensation to match your preferences and levels of arousal.

It's important to note that everyone's experience with strokers can be unique. Some individuals find that strokers provide intense and pleasurable sensations that can lead to satisfying orgasms. Others may find that strokers require a bit of experimentation to find the techniques and movements that feel most enjoyable.

Ultimately, the sensations you experience with a stroker depend on factors such as the specific model you're using, your level of arousal, and your personal preferences. If you're new to using strokers, consider experimenting, taking your time, and focusing on what feels pleasurable to you.