For a continuous frictional movement, lubrication is the first job. If you don't want your penis to be injured, it is best to add the right amount of lubricant to your penis and the inner sleeve before use. This will make your movements silkier and more realistic.
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The masturbator sleeve is made of silicone and has no temperature, but if you want your masturbation cup to be as warm as a vagina, then you can use the heating rod to preheat the sleeve. Some heating male masturbators with built-in heating or heated bases make this job easier. You just need to warm up the sleeve about 15 minutes early and you can enjoy a game of next-level comfort.