MaterialOxford ClothColorBlackSize218x218x30cm, 231x231x30cm, 244x244x30cm, 218x218x90cmStyleHeavy DutyPackage Contents1 Piece1.Waterproof and UV Protection: This square hot tub cover is made of 420D Oxford material, which is not permeable, lightweight and durable. NOTE: This cover can not be used alone without an insulated hard cover under it.2.Multiple sizes: The hot tub cover comes in four sizes: 85x85x12Inch(218x218x30cm), 90x90x12Inch(231x231x30cm), 96x96x12Inch(244x244x30cm), 85x85x35Inch(218x218x90cm). Applicable to most types and sizes of bath covers, you can measure the size of the bath before purchase.3.Full protection: square spa cover close to the hot tub, can prevent outside dust, leaves and other garbage into the bathtub, Fully coverage protection to prevent your hot tubs from sunshine, rain, hail, snow, dust and so on. keep the hot tub clean, to your square hot tub has a good protection.4.Practical design: the bottom of the square hot tub cover can adjust the length of the rope, to ensure that the hot tub cover is closely attached to the hot tub, will not be blown away by the wind.5.Wide Applications: This square spa cover is nice for Hot tub, outdoor movable hot spring bath, and outdoor movable swimming pool.