VEVOR Outdoor Hot Tub Cover, 93 x 93 x 20 Inch Weatherproof and Waterproof Hot Tub Cover Protector, 600D Heavy Duty Oxford Fabric and 950N Tearing Strength, Square Spa Covers for Hottub, Black

Yes, it should fit a 93" × 93" spa if the cover matches your spa's dimensions. It is designed to stay in place when properly secured. However, it is not a safety cover and should not be relied on to protect toddlers. Always provide adult supervision and use a certified safety cover if child safety is required.

Yes, this cover works perfectly with lift arms. It's a protective outer cover that fits over your existing hard cover and won't interfere with the lift mechanism.