Step 1: Gently slide the internal sleeve out from the external shell. Step 2: Carefully rinse with cold or lukewarm water, and mild soap. For a more thorough clean, turn the internal sleeve inside-out and wash. Step 3: After cleaning the inside and outside of your stroker, shake off excess water and leave the two pieces out separately to air dry. When the pieces are dry, put the internal sleeve back in the external shell and store it in the vented storage case.