This is a practical and convenient folding bed. It's easy and quick to fold up or unfolded with a mattress, space-saving to storage. After being folded, this bed can easily be moved to everywhere with 360°casters. It is durable and sturdy with metal + wood frame, springs(for stable supporting) and fire-resistant mattress & cover, max.110Kg load-bearing to hold single person. This product can provide an extra bed for dormitory, guest room, office, studio, rental housing, daily use or for guests. Have detachable striped cover to prevent stain of mattress. Perfect for dormitory, guest room, office, studio, rental housing to add a extra bed. Note: The following actions are prohibited: 1.Stand in the middle 2.Jumping on the bed 3.To be over-weighted specifications: Color: White + black weight capacity: Max.110Kg / 242.51Lb mattress thickness: 9.5Cm / 3.74" Material: Metal + fabric + sponge open size: 191 * 80 * 25Cm / 75.19 * 31.49 * 9.84"(L * w * h) folding size: 79 * 30 * 105Cm / 31.1 * 11.81 * 41.34" (L * w * h) bed weight: 13.4Kg / 29.54Lb package size: 90 * 37 * 85Cm / 35.43 * 14.57 * 33.46"(L * w * h) package weight: 17.4Kg / 38.36Lb package included: 1 * Folding bed(with mattress) 1 * instruction.