Features: -4D air mesh technology allows water and air to penetrate easily and dry quickly, can prevent the growth of odors, mold or bacteria. -The bathtub cushion contains 6 suction cups, which can create suction on smooth surfaces, allowing the cushion to be attached to the bathtub. -The bathtub pillow hook can be hung on the towel rail or robe hook in the bathroom or shower. -The thick filling material provides support and high elasticity to give you comfortable enjoyment and relieve physical fatigue and reduce back and neck pain. -Suitable for bathtub, whirlpool bathtub, bathroom, freestanding bathtub, inflatable whirlpool, spa. .