It can reduce the friction between the small objects and the tank

they stop and stay there

Vibration and tone functions only (no electric shock)

5mm thick steel cable

Purity: Min 99

Bestway Air Mattress Queen Inflatable Bed 46cm Airbed Decorated Surface Grey Garden Beds & Planters It can reduce the frictionBestway Queen Size Air Bed Easy to store and set up, the air mattress provides maximum comfort. Features * Sturdy I beam construction * Comfortable flocked sleeping surface * Unique rib and surround frame design * Advanced body support & eliminate roll offs * Comfortable foam top design * Unparalleled sleeping experience * Heavy duty repair patch * Built in pump for easy operation * Comes with a carry bag * Suitable for both indoor and outdoor use